Eastern Mojave Vegetation

Detailed Area Plant List for Jefferson County Open Space, Jefferson County, United States.

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Edited by Tom Schweich

This list is assembled from personal collections, herbarium vouchers, and published lists. For California, much of the data is provided by the participants of the Consortium of California Herbaria as indicated by a single dagger “†.” Their web site is at: (http://ucjeps.berkeley.edu/consortium/). For Colorado, much of the data is provided by the Southwest Environmental Information Network as indicated by a double dagger “‡,” which web site is found at (http://swbiodiversity.org). See their respective websites for copyright information and recommended citation formats.

For a complete list of Locations included in this Area List, see the Locations Included section, below.

For a check list, please see: Check List for Jefferson County Open Space, Jefferson County, United States.

Dryopteridaceae

Cystopteris fragilis (L.) Bernh.  Brittle Bladderfern. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, East-facing rock crevices. Rim of mesa, head of unnamed canyon draining southeast to Clear Creek, 1.8 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1447.1 22 Jun 2016. ( JCOS s.n. ) .

- South Table Mountain, In wet moss and rock crevices A lava capped mesa in the Denver Formation. frequent, S. Table Mt., a lava capped mesa. At head of W fork of 1st N facing gully E of Castle Rock. 13N 0483140E 4400820N. Loraine Yeatts 2392. 13 May 1987. ( COLO 00945303 KHD24507 ) . .

Woodsia oregana D.C. Eaton ssp. cathcartiana (B.L. Rob.) Windham.  Rocky Mountain Woodsia. CalPhotos. Jepson eFlora. SEINet Taxon.

Of the three characters that distinguish subsp. cathcartiana from subsp. oregana, two, spore size and adaxial epidermal cell size, require measuring in units of µm, something outside the usual abilities of the field botanist. The third character, regarding the cells on pinnule margins being irregular in shape making the margins appear ragged, can be seen with a good microscope.

- Lippincott Property, Deep shade. Determined by comparison to Coll. No. 2069, which was made from the same plants. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south bank of Bull Gulch, 23.0 km. north northwest of the GNIS location of Golden. Tom Schweich 2019. 18 Apr 2019. ( Golden ) Deep shade. Same as Coll. No. 2019, 18 Apr 2019. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south bank of Bull Gulch, 23.0 km. north northwest of the GNIS location of Golden. Tom Schweich 2069. 6 Jun 2019. ( Golden ) .

- North Table Mountain Park, Under an east-facing rock overhang. Southeastern portion of North Table Mountain, near the North Table Loop, where it passes through the top basalt rim of the mountain, 1.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1343. 12 May 2016. ( JCOS s.n. KHD00063429 ) Western slope of North Table Mountain, in boulders of the break in slope formed by the lowest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1734. 15 Aug 2017. ( KHD00065322 ) East-facing rock crevices. Rim of mesa, head of unnamed canyon draining southeast to Clear Creek, 1.8 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1447. 22 Jun 2016. .

- South Table Mountain, Growing under rock, SW facing gully. South Table Mountain. 13N 0482600E 4400600N. Janet L. Wingate 2370. 1 Jun 1983. ( KHD13185 ) Overhanging ledge of volcanic rock near drainage on W. side of mesa. S. Table Mt, UTM coord. 822004. 13N 0482200E 4400400N. Mary E. Edwards 430. 1 Jun 1983. ( KHD20849 ) .

Equisetaceae

Equisetum arvense L.  Field Horsetail. CalPhotos. Jepson eFlora. SEINet Taxon.

- Meyer Ranch Park, Wet meadow-ground moist surrounded by mosses and covered by dead grasses and reeds USA, Colorado, Jefferson County, Meyer Ranch Park, Jefferson County Open Space, west of the intersection of HWY 285 and Turkey Creek Road. Verbatim Coordinates: 13S 0476468N 4377346E. Carol Winther 2. 5 May 2004. ( KHD32359 ) Habitat: under aspens; hillside with drainage, with Viola adunca USA, Colorado, Jefferson County, Meyer Ranch Park, Jefferson County Open Space, west of the intersection of HWY 285 and Turkey Creek Road. Verbatim Coordinates: 13S 0476428E 4377185N; Carol Winther 25. 26 May 2004. ( KHD32387 ) USA, Colorado, Jefferson County, Meyer Ranch Park, Jefferson County Open Space, west of the intersection of HWY 285 and Turkey Creek Road. Carol Winther 80. 23 Jun 2004. ( KHD32443 ) .

Pteridaceae

Argyrochosma fendleri (Kunze) Windham.  Fendler's False Cloak Fern. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Front Range, South Table Mountain, a lava capped mesa in the Denver Formation, 1st major N facing gully E. of Castle Rock. 13N 0483130E 4399950N. Loraine Yeatts 1457. 4 Jun 1987. ( KHD25152 ) . .

Cheilanthes feei T. Moore.  Slender Lipfern. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, a lava capped mesa in the Denver formation; in crevices on N. facing vertical, barren, 50 ft. cliff face. Front Range, S. Table Mt., a lava capped mesa in the Denver formation; UTM coord. 8323E0100N. 13N 0483230E 4401000N. Loraine Yeatts 2392. 18 Jun 1990. ( COLO00677385 KHD28291 ) .

Selaginellaceae

Selaginella underwoodii Hieron.  Underwood's Spikemoss. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, S Table Mountain, in 2nd stream gully N of quarry on N facing rocks; UTM coord. 840006. 13N 0484000E 4400600N. Peter G. Root 854. 9 May 1985. ( KHD22019 ) .

Cupressaceae

Juniperus communis L.  Common Juniper. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Tom Schweich 7/13/2019. .

- Meyer Ranch Park, Along trail under lodgepole pines . USA, Colorado, Jefferson County, Meyer Ranch Park, Jefferson County Open Space, west of the intersection of HWY 285 and Turkey Creek Road Carol Winther 31. 26 May 2004. ( KHD32394 ) . .

Juniperus scopulorum Sarg.  (Syn: Sabina scopulorum Sarg.(Sarg.) Rydb. ) Rocky Mountain Juniper. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Tom Schweich 7/13/2019. .

- South Table Mountain, Front Range, South Table Mountian, a lava capped mesa in the Denver Formation; clay substrate. 7.5'Golden; 1st major N facing gully E of Castle Rock; near head of dry W fork of gully. 13N 0483170E 4400845N. Loraine Yeatts 1558. 12 Oct 1987. ( COLO 00808642 KHD25155 ) .

- Windy Saddle Park, Several trees on the edge of a rocky ridge. Southeastern Windy Saddle Park, west of and above the Colorado School of Mines Survey Field, 2.19 km south southwest of the GNIS location of Golden. Tom Schweich 1244. 24 Jul 2015. ( JCOS s.n. KHD00060587 OBI83210 UC UCR267461 ) .

Pinaceae

Pinus ponderosa Laws.  Ponderosa Pine. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich 7/13/2016. .

- Ranson/Edwards Homestead Open Space Park, Upper slopes just below the railroad tracks. Stevens parcel immediately south of the Ranson/Edwards parcel, 400 m west northwest of the Plainview Road bridge over Coal Creek, 14.5 km north northwest of the GNIS location of Golden. Tom Schweich 1316. 14 Apr 2016. ( JCOS s.n. KHD00067749 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Pseudotsuga menziesii (Mirb.) Franco.  Douglas Fir. CalPhotos. Jepson eFlora. SEINet Taxon.

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Pseudotsuga menziesii (Mirb.) Franco var. glauca (Beissn.) Franco.  (Syn: Pseudotsuga menziesii (Mirb.) Franco var. glauca (Mayr) Franco ) Douglas Fir. CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Falcon Park, USA, Colorado, Jefferson County, in open along Parmalee trail, Mount Falcon park near indian hills. Peter G. Root 881. 29 May 1988. ( KHD26650 ) .

- North Table Mountain Park, In brush on moderate northwest slope, only such tree seen. North slope of North Table Mountain, 30 m. east of and above the Mesa Top Trail (radio tower access road), 3.4 km. north of the GNIS location of Golden. Tom Schweich 1502. 13 Jul 2016. ( JCOS s.n. KHD00063565 ) .

Amaranthaceae

Amaranthus Pigweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Golden, Table Mountain Ranch at NW corner of North Table Mountain. Near main entrance road. 13N 0481966E 4404968N. Janet L. Wingate 1309. 18 Oct 1981. ( KHD6692 ) . .

Amaranthus albus L.  Prostrate Pigweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Bare clay soil of mesatop. Lava capped mesa. Jefferson County, Colorado, USA. S. Table Mt., a lava capped mesa in the Denver Formation. UTM: 836003. Loraine Yeatts, with V. Richards 1088. 18 Sep 1984. ( COLO00005165 ) . .

Amaranthus arenicola I. M. Johnst.  Sandhill Pigweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Golden, Table Mountain Ranch at NW corner of North Table Mountain. Near main entrance road. 13N 0481966E 4404968N Janet L. Wingate 1188. 13 Sep 1981. ( COLO00005405 KHD6691 ) . .

Amaranthus blitoides S. Watson.  (Syn: A. graecizans L. ) Mat Amaranth. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, S. Table Mt. In center of hardpacked road to Castle Rock. 13N 0482800E 4400400N. Loraine Yeatts 812. 29 Aug 1983. ( COLO00005694 KHD18902 ) . .

Amaranthus powellii S. Watson.  Powell's Pigweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, abundant & widespread, S. Table Mountain. Common along Quaker Rd. near mesa top. 13N 0484300E 4399500N. Loraine Yeatts 825. 29 Aug 1983. ( COLO00006098 KHD18903 ) .

Anacardiaceae

Rhus trilobata Nutt.  (Syn: Rhus aromatica Aiton ) Squawbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1369. 24 May 2016. ( JCOS s.n. KHD00063919 UCR277973 ) Near top of small mound, also collected here: Opuntia macrorhiza and Thelesperma megapotamicum. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.06 km. north northeast of the GNIS location of Golden. Tom Schweich 2139. 11 Jul 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, 7/6/2019. . .

Rhus trilobata Nutt. var. trilobata.  (Syn: Rhus aromatica Aiton var. trilobata (Nutt.) A. Gray ex S. Watson ) Skunkbush Sumac. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, SW facing gully 13N 0482600E 4400300N. Janet L. Wingate 2375. 1 Jun 1983. ( KHD13378 ) Abundant cover plant, in fruit; Skunkbush"" S. Table Mt. W. facing slope just below mesa edge at head of minor gully. 13N 0484200E 4399200N Loraine Yeatts 699. 16 Jul 1983. ( KHD13378 KHD20698 ) . .

Toxicodendron rydbergii (Small ex Rydb.) Greene.  Western Poison Ivy. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich 7/22/2016. .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 8/27/2019. Tom Schweich 7/6/2019. .

Apiaceae

Aletes acaulis (Torr.) J.M. Coult. & Rose.  Stemless Indian Parsley. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Collectors number is 92-66. North Table Mountain. TRS: T3S R70W S22 R.J. Rondeau, with C.A. Pague, M.A. Duff. 9266. 16 Jun 1992. ( COLO00828079 ) Edges of cliffs. Southwest rim of North Table Mountain, 1.55 km north of the GNIS location of Golden. Tom Schweich 1321. 4 May 2016. ( JCOS s.n. KHD00063815 UCR277964 ) Base of northwest-facing wall of quarry, with Hydrophyllum fendleri, Penstemon virens, Prunus virginiana, Brickellia california, and Physaria vitulifera. Top of North Table Mountain, in the main basalt quarry near the west edge of the mesa, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1925. 8 Jun 2018. ( JCOS s.n. KHD00069136 OBI170744 ) .

- South Table Mountain, South Table Mountain field, 1 mile east of Golden. Doug Fambrough 349. 21 Jun 1961. ( VSC0009066 ) Occasional on rock ledges of S-facing cliff of mesa edge. S. Table Mt., a lava capped mesa in the Denver formation, under Castle Rock. UTM: 821004 Loraine Yeatts 869. 7 May 1984. ( COLO00007773 ) Flowers yellow; Occasional locally found, but not on S. mesa rim. Collectors number is 83-9. South Table Mountain. Aspect: SW facing slope On rocks at base of cliff rimming mesatop on SW facing slope of S Castle Rock A lava capped mesa in the Denver Formation rock. 13N 0482200E 4400300N. Peter G. Root 839. 1 Jul 1983. ( COLO00007815 KANU313743 KHD21796 ) . .

Conium maculatum L.  Common Poison Hemlock. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Slope: steep, Aspect: S. Occasional in damp areas. a lava capped mountain in the Denver Formation seeping cliff S. Table Mountain, at top of S. facing seeping cliff rimming gully. 13N 0484200E 4399300N. Loraine Yeatts 642. 3 Jul 1983. ( KHD21798 ) . .

Cymopterus Raf.  Spring-Parsley. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Later collected, No. 2023 Tom Schweich, with Irene Weber 4/24/2019. . .

Harbouria trachypleura (A. Gray) J.M. Coult. & Rose.  (Syn: Thaspium trachypleurum A. Gray ) Whiskbroom Parsley. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, On break in slope above reservoir. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 620 m. north of Plainview Road. Tom Schweich 1380. 29 May 2016. ( CS JCOS s.n. KHD00063829 ) Among grasses and ponderosa pines, near top of south-facing slope. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, then 2.4 mi. northerly on Plainview Road, then 40 m. or so south of the road. 16 km. north northwest of the GNIS location of Golden. Tom Schweich 1408. 10 Jun 2016. ( COLO02348357 EIU JCOS s.n. KHD00063836 ) . .

Lomatium orientale J.M. Coult. & Rose.  Northern Idaho Biscuitroot. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 20 cm., woody taproot; Leaves, compound, pinnate, 75 mm. × 26 mm. wide, ultimate divisions, ≤3 mm., ≤1 mm. wide, villous, tips, obtuse, (with a very small white “spine”); Inflorescence, compound umbel; Involucel Bracts, glabrous; Flowers, white; Anthers, red; Ovary, glabrous, stylopodium, absent; Fruit, 5 mm. × 3.5 mm. wide, ovate, glabrous, dorsally compressed, lateral ribs winged (Described from Coll. No. 1837, 17 May 2018).

- Lippincott Property, In thick soil and forest duff on the exposed east side of a ridge. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, near the northern edge of the property and the Boulder County boundary, east side of ridge, 25.6 km. north northwest of the GNIS location of Golden. Tom Schweich 2031. 26 May 2019. ( Golden ) .

- North Table Mountain Park, Widespread on mesa-top lava flow derived soils and colluvial soils of upper and lower slopes. Top of mesa, near southwest edge, 1.55 km north of the GNIS location of Golden. Tom Schweich 1322. 4 May 2016. ( JCOS s.n. KHD00063812 OBI83175 UCR278795 ) .

- Ranson/Edwards Homestead Open Space Park, Occasional on drier or more-exposed surfaces. On a somewhat rocky alluvial terrace, north side of an unnamed creek, 1.2 miles north on Plainview Road from the intersection with Colorado State Highway 72, Coal Creek Canyon Road, and then 200 m east across the field. Tom Schweich 1077. 23 Mar 2015. ( JCOS s.n. ) Gentle east-facing grassy slopes. Stevens parcel just south of Ranson/Edwards parcel, about 180 m. northwest of the Plainview Road bridge over Coal Creek, 3.65 km west southwest of the GNIS location of Rocky Flats, Tom Schweich 1326. 5 May 2016. ( CS JCOS s.n. KHD00063813 OBI83174 UCR278788 ) Along a low ridge that is a little drier and rockier than surrounding grass land; moss growing on bare soil. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 567 m. northeast past the old homestead, about 15.9 km. north of the GNIS location of Golden. Tom Schweich 1837. 17 May 2018. ( COLO02347672 ) Geographic coordinates estimated with GoogleEarth. High plains above Rocky Flats, 1.7 mi. west on CO 72 from CO 93, 1.2 mi. generally north on Plainview Road, then approx. 300 m. northeast on an old road in the direction of the original homestead. Open prairie, lightly grazed in some recent years. Tom Schweich 2075. 10 Jun 2019. ( Golden ) .

- South Table Mountain, A lava capped mesa in the Denver Formation. On mesa edge among lava boulders at top of S. facing slope. S. Table Mt. UTM: 842994 Loraine Yeatts 465. 2 May 1983. ( COLO00016089 ) a lava capped mesa in the Denver Formation; on mesa edge among lava boulders at top of S. facing slope lava capped mesa in the Denver Formation. S. Table Mountain, on mesa edge among boulders. 13N 0484200E 4399400N. Loraine Yeatts 466. 2 May 1983. ( KHD21802 ) Clay loam, level area on mesa. Collector's number is 54-3. Mesa 0.5 mi. s. of Golden, Colorado. Margaret M. Douglass 543. 8 Apr 1954. ( COLO00016352 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Musineon divaricatum (Pursh) Raf.  Leafy Wildparsley. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Heavy clay soil. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south parcel, high prairie above Rocky Flats, 21.7 km. north northwest of the GNIS location of Golden. Tom Schweich, with Irene Weber 2023. 24 Apr 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich, with Irene Weber 5/22/2019. .

- South Table Mountain, Weed in disturbed area at edge of house lot. Locally common., , Condition: fair. a lava capped mesa in the Denver Formation; on east facing roadcut a lava capped mesa in the Denver Formation. South Table Mountain, along Quaker Road on east side of roadcut. 13N 0484332E 4399032N Loraine Yeatts 496. 16 May 1983. ( KHD21800 ) . .

Osmorhiza depauperata Phil.  Blunt-Fruit Sweet-Cicely. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south bank of Bull Gulch, 23.0 km. north northwest of the GNIS location of Golden. Tom Schweich 2069.1 6 Jun 2019. ( Golden ) .

Apocynaceae

Apocynum ×floribundum Greene.  Dogbane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 35 cm.; Leaves, cauline, opposite, spreading horizontal, petiole 2 mm. + blade 50 mm. × 24 mm. wide, ovate, margin revolute; Sepals, 2.5 mm.; Flowers, bell-shaped, 6 mm. × 5 mm. wide, >2× calyx; Petals, fused at base, tube  mm. + lobes 2 mm., pink, drying purple, lobes erect to spreading, none reflexed; Stamens, 5. Filaments, distinct; More like A. androsaemifolium than A. cannabinum, but it seems to best fit the description of the hybrid A. ×floribundum. (Described from Coll. No. 1442, 22 June 2016.)

- North Table Mountain Park, Western side of North Table Mountain, in roadside ditch along road to City of Golden water tank, 2.8 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1442. 22 Jun 2016. ( JCOS s.n. KHD00063840 OBI83328 UCR278005 ) .

- Ranson/Edwards Homestead Open Space Park, In dense vegetation at edge of old road. Flood plain of Coal Creek, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. generally north on Plainview Road, then 340 m. generally east on an old road leading to Coal Creek; 14.7 km. north northwest of the GNIS location of Golden. Tom Schweich 1466. 27 Jun 2016. ( COLO02348878 CS JCOS s.n. KHD00063977 ) Along old road in the direction of the original homestead. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.3 miles north on Plainview Road, then 20 meters east into open prairie. Tom Schweich 1678. 28 Jun 2017. ( CDA Golden JCOS s.n. KHD00065483 ) . .

Apocynum cannabinum L.  Indian Hemp. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, west wet gully S. Table Mountain, Just above and at head of wettest part of minor gully on W. facing slope below mesa edge. 13N 0483933E 4399485N. Loraine Yeatts 703. 16 Jul 1983. ( COLO00022384 KHD18904 ) .

Asclepiadaceae

Asclepias pumila (A. Gray) Vail.  Plains Milkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich 8/18/2016. Growing in low grasses and forbs. Lower north slopes of North Table Mountain, 0.79 km southeast of the Mesa Spur Trailhead in 58th Avenue, 4.65 km. north northeast of the GNIS location of Golden. Tom Schweich 1508. 22 Jul 2016. ( EIU JCOS s.n. KHD00063944 UC ) .

- South Table Mountain, Slop: open, Aspect: West W. facing open slope above head of drainage S. Table Mountain, above head of drainage. Loraine Yeatts 579. 2 Aug 1983. ( COLO00023754 KHD18905 ) [ This collection number, 579, is duplicated by a collection Scutellaria brittonii made on 16 Jun 1983, and seems a little odd given the date of the collection. I think it's more likely that this is collection #759. ] Habitat: a lava capped mesa in the Denver Formation; flat meadow in disturbed roadbed; with Chryosthamnus nauseosus USA, Colorado, Jefferson County, S. Table Mt., flat meadow S. of hill 6020 in disturbed roadbed Loraine Yeatts 1340. 25 Aug 1986. ( KHD24156 ) . .

Asclepias speciosa Torr.  Showy Milkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 7/26/2015. .

- South Table Mountain, In swampy seeping area. S. Table Mt. Below gentle S. facing slope at edge of gully. UTM: 839994 Loraine Yeatts 707. 16 Jul 1983. ( COLO 00024059 KHD00001784 ) Habitat: swampy, seeping area USA, Colorado, Jefferson County, S. Table Mountain, Head of 1st drainage W. of Quaker Rd. Loraine Yeatts 835. 9 Sep 1983. ( KHD18906 ) . .

Asclepias viridiflora Raf.  Green Comet Milkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Several plants trailside, northeast North Table Mountain. Tom Schweich 7/29/2016. .

- Ranson/Edwards Homestead Open Space Park, Observed on CoNPS field trip, coordinates approximate. Tom Schweich 7/8/2017. .

- South Table Mountain, On S. facing slope below mesa edge in clay soil; sparsely vegetated old burn site. Jefferson County, Colorado, USA. South Table Mountain. UTM: 842992 Loraine Yeatts 704. 16 Jul 1983. ( BRY0164072 COLO00025791 KHD1844 ) .

Asteraceae

Achillea millefolium L.  (Syn: A. lanulosa Nutt. , A. m. L. var. alpicola (Rydb.) Garrett , A. m. L. var. lanulosa (Nutt.) Piper , A. m. L. var. occidentalis DC. ) Common Yarrow. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb to 50 cm.;; Leaves alternate, tendrils absent, finely dissected, aromatic when fresh; Inflorescence, heads enclosed by an involucre, in flat-topped clusters; Phyllaries in 2+ series; Receptacles bearing scale-like bracts (paleate); Perianth in 2 or more whorls, parts in 5s; Phyllaries in 2+ series, not all subtending ray flowers; Flowers open, bisexual, two kinds, some with strap-shaped corollas; Petals fused into a tube; Ray flowers, white, lobe ovate; Disc flowers, white; Stamens = in number to corolla lobes; Ovary inferior. Pistils, 1 per flower (Described from Coll. No. 482, 30 Nov 2011, and Coll. No. 1023, 24 Jul 2013).

- Lippincott Property, Edge of open ponderosa pine woodland at break in slope. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2083. 17 Jun 2019. ( Golden ) .

- North Table Mountain Park, Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1494. 13 Jul 2016. ( CS JCOS s.n. KHD00063465 ) .

- Ranson/Edwards Homestead Open Space Park, Banks of intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 175 m. west of Plainview Road. Tom Schweich 1251. 26 Jul 2015. ( JCOS s.n. KHD00062047 UC UCR267464 ) .

- South Table Mountain, a lava capped mesa in the Denver Formation; along trail on W. facing slope lava-capped mesa in the Denver Formation S. Table Mt. along trail on W. facing slope below Castle Rock. 13N 0482100E 4400100N. Loraine Yeatts 933. 25 Jun 1984. ( KHD20610 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Acroptilon repens (L.) DC.  Russian Knapweed. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Colony growing in open area near horse corals. Table Mountain Ranch, Golden, at NW base of Table Mountain. 13 0481744E 4405299N. Janet L. Wingate 8876. 4 Aug 2006. ( COLO00883884 GREE9066 KHD13845 KHD56478 ) . .

Agoseris parviflora (Nutt.) D. Dietr.  (Syn: A. glauca (Pursh) Raf. var. laciniata (D. C. Eaton) Smiley ) Steppe Agoseris. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 20 cm.; Leaves, basal, to 180 mm. × 6 mm. wide, not prickly, margins, generally straight (not wavy), 0- to 6-toothed, sparsely ciliate or hairy; Inflorescence, single heads on scape to 15 cm.; Phyllaries, in 2+ graduated series, 10-13-16 mm., generally green, mid-vein dark purple, margin scarious, outer phyllaries, mid-vein and margin ciliate; Ray flowers, corolla, 20-22 mm., yellow (drying more purple than pink), lobes 5; Disc flowers 0; Pappus, simple capillary bristles; Achene, surface smooth, beak unknown (immature). (Described from Coll. No. 1101, 3 May 2015)

- Mount Galbraith Park, Small saddle on ridge, 40 m north of Nightbird Gulch Trail. 2.3 km northwest of the GNIS location of Golden. Tom Schweich 1101. 3 May 2015. ( JCOS s.n. KHD56936 ) .

- South Table Mountain, Common at base of S. facing slope below mesa edge. S. Table Mt. UTM: 842996. Loraine Yeatts 535. 1 Jun 1983. ( COLO00029868 KHD19483 ) . .

Ambrosia artemisiifolia L.  (Syn: A. artemisiifolia L. var. elatior (L.) Descourt. ) Annual Ragweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver formation; ephemeral pond; in damp mud of last area of pond bed to dry; associates include Rorippa sinuata, Xanthium strumarium, Thlaspi arvense, Polgonum erectum ssp. Achoreum, Eleocharis acicularis, Xanthium strumarium, Sunny meadow. South Table Mountain; ephemeral pond on flats above south rim, W of Quaker Rd. 13 0483540E 4399950N. Loraine Yeatts 4207. 17 Oct 1998. ( KHD35614 ) . .

Ambrosia psilostachya DC.  Western Ragweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., woody at base; Leaves opposite below, alternate above, 50 mm. × 22 mm., ovate, pinnately divided; Inflorescence indeterminate, appearing raceme-like, 2 kinds of flowers, pistillate heads many, distal, carpellate heads few, clustered in distal leafy axils; Phyllaries fused into a cup; Receptacle not chaffy; Pappus absent (Described from Coll. No. 1068, 8 Oct 2014).

- North Table Mountain Park, South slopes of North Table Mountain, just off the Golden Cliffs Trail, and just a little below the basalt cliffs, 1.5 km north northeast of the GNIS location of Golden. Tom Schweich 1062. 29 Aug 2014. ( CAS UC2045777 ) Rocky slope with little soil development near rim of mesa. Near the south rim of North Table Mountain, accessed by way of the Golden Cliffs Trail, 1.5 km north northwest of the GNIS location of Golden. Tom Schweich 1068. 8 Oct 2014. ( JCOS s.n. OBI82138 UCR266095 ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 8/28/2015. High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 35 meters southwest on the slope above the road. Tom Schweich 1763. 1 Sep 2017. ( Golden JCOS s.n. KHD00065167 ) .

- South Table Mountain, South table mountain, Common at edge of quaker road. 13N 0484233E 4399170N. Loraine Yeatts 768. 7 Aug 1983. ( COLO00031096 KHD19334 ) West side of South Table Mountain, along south loop of Lubahn Trail, 1.17 km east southeast of the GNIS location of Golden. Tom Schweich 1069. 16 Oct 2014. ( OBI82121 ) mesatop flats lava capped mesa in the Denver Formation S. Table Mt., along E-W road N of Quaker Rd. gate. 13N 0484291E 4399486N. Velma Richards 1383. 18 Sep 1984. ( KHD20928 ) . .

Ambrosia trifida L.  (Syn: A. trifida L. var. trifida ) Giant Ragweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Aspect: N At base of rocky N. facing slope. (A lava capped mesa in the denver formation) lava capped mesa in the Denver Formation rocky Locally abundant, , Condition: fair S. Table Mountain, head of gully overlooking Rolling Hills Country Club. 13N 0484107E 4400381N. Loraine Yeatts 1084. 18 Sep 1984. ( COLO00031633 KHD20834 ) . .

Anaphalis margaritcea (L.) Bentham & Hooker.  Western Pearly Everlasting. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, North Table Mountain. Mark Duff 178. 16 Jun 1992. ( COLO00032193 ) . .

Antennaria parvifolia Nutt.  Small-Leaf Pussytoes. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 10 cm., stoloniferous; Stem, tomentose; Leaves, basal and cauline, basal, petiole, gradually expanding into blade, blade, 16 mm. × 6.7 mm. wide, oblanceolate, entire, glandular, tomentose, tips, pointed, cauline, 10 mm. × 2 mm. wide, linear; Inflorescence, heads enclosed by an involucre, #3 per stem, not showy; Involucre, 7 mm. × 4.5 mm. wide, cylindric; Phyllaries, 5+ series, 4 mm. × 2 mm. wide to 8 mm. × 1 mm. wide, green proximally to white (pinkish) distally, tomentose, margins, flat, scarious, tips, rounded; Receptacle, epaleate; Flowers, of 1 kind; Disk flowers, many, 6.5 mm., white; Pappus, many, well-developed, bristles, 8 mm., ±equal; Cypsela, 0.8 mm. × 0.3 mm. wide, brown, glabrous. (Described from Coll. No. 1909, 31 May 2018.)

- Mount Falcon Park, East-facing, grassy slope of small unnamed hill, 530 m north northwest of Mt. Falcon, approximately 13.5 km south of Golden. Tom Schweich 1128. 1 Jun 2015. ( JCOS s.n. KHD56951 UCR265986 ) .

- South Table Mountain, Slop: gentle, Aspect: N On gentle N facing slope at edge of shrubt thicket of Mt Mahogany and ninebark. Only a few plants and only place seen on mesa, mountain mahogany and ninebark. S. Table Mt. A lava capped mesa in the Denver formation. 13N 0484008E 4400106N. Loraine Yeatts 1197. 19 May 1985. ( COLO00035006 KHD24460 ) . .

Antennaria rosea Greene.  Rosy Pussytoes. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 9 cm., stoloniferous 4-5 cm., forming loose mats in wet muddy soil, all sixteen plants collected pistillate (gynoecious?); Leaves, simple, white tomentose both sides, basal, 35 mm. × 9 mm wide, oblanceolate, cauline, 11-13 mm., linear; Inflorescence, >> basal leaves; Involucre, 5.5-7.0 mm.; Bracts (phyllaries), 5.0-6-5 mm. × 1.1-0.7 mm. wide, green at base, purplish band in middle, tips, white, scarious. (Described from Coll. No. 1083, 25 April 2015).

- Ranson/Edwards Homestead Open Space Park, Growing in patches among openings in a grassy, formerly burned open ponderosa pine woodland. 2.1 miles on Plainview Road north of Colorado State Highway 72, then 115 m west. Tom Schweich, with Matt Schweich 1083. 25 Apr 2015. ( JCOS s.n. KHD56958 UC2045771 ) . .

Arctium minus Bernh.  Lesser Burdock. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Collected with Cynoglossum officinale. Vegetative parts only, collections with flower or fruit typically made in August through October. Colorado Noxious Weed List C. High plains above Rocky Flats, west 1.7 mi. on CO Hwy 72 from CO Hwy 93, generally north 1.0 mi. on Plainview Road, then 365 m. east into a thicket, primarily of Prunus virginiana, 19.6 km. north northeast of the GNIS location of Golden. Tom Schweich 2124.1 6 Jul 2019. ( Golden ) . .

Arnica fulgens Pursh.  Shining Leopardbane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb of wetlands, moist, or somehow equible areas, to 35 cm., glandular hairy throughout; Leaves, mostly basal and few cauline, basal, axils with 5 mm. brown wavy hair, petiole 50-70 mm. + blade 60-100 mm. × 12-30 mm. wide, 3.3-5 × longer than wide, lanceolate, tip obtuse, cauline, opposite, sessile, ±2 pair, much reduced; Inflorescence, showy, single heads on peduncle to 80 mm., flowers of two kinds; Involucre, 13-15 mm. × 22-30 mm. wide; Phyllaries, 2 ±equal series, 11-14 mm.× 3-3.5 mm. wide, margins, flat, tips, obtuse green with dark tips glandular-hairy abaxially; Receptacle epaleate; Rays, #12, fertile, tube 3-5 mm. + blade 16-19 mm. × 7-7.5 mm. wide = 19-24 mm., corolla yellow; Disc flowers, tube 7-7.5 mm. + lobes ≤1 mm. = 8-8.5 mm.; Pappus, bristles, 9 mm., white, barbelate; Anther, yellow; Achene, 5 mm., short hairy. Described from Coll. Nos. 1119, 1371, and 1871. Subtribe Arnicinae is a sister subtribe to Madiinae (tarweeds) and Hulseinae, which contains both Hulsea and Eatonella, both common in the Mono Lake basin. Described by Pursh in Fl. Am. Sept. 2: 527 “On the banks of the Missouri,” but this is not a Lewis & Clark collection. Perhaps it is a Nuttall collection from 1810. Holotype: BM?, Isotype: PH.

- Lippincott Property, Open prairie in small saddle. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south of Bull Gulch approximate centroid of parcel, 22.4 km. north northwest of the GNIS location of Golden. Tom Schweich 2038. 26 May 2019. ( Golden ) With mixed grasses and forbs in a gently sloped, open ponderosa pine woodland. Narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2080. 17 Jun 2019. ( Golden OBI ) .

- Ranson/Edwards Homestead Open Space Park, Very wet, running water among grasses and sedges. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 110 m. east of Plainview Road. Tom Schweich 1119. 28 May 2015. ( JCOS s.n. KHD56970 UCR265985 ) Moist east-facing slope with deep grass. High plains above Rocky Flats, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, then 1.4 mi. north on Plainview Road. 15.8 km. north northwest of the GNIS location of Golden. Tom Schweich 1371. 29 May 2016. ( CAS COLO02348472 CS EIU JCOS s.n. KHD00063982 OBI83169 ) . .

Artemisia campestris L.  Field Sagewort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm., longer lived than biennial; Stem, 4± per caudex, reddish; Leaves, basal mostly withered, cauline, 8 mm. × 0.6 mm. wide, narrowly oblanceolate, tomentose; Inflorescence, 130 mm. × 20 mm. wide; Heads, many, 2 mm. × 2 mm. wide; Phyllaries, 2+ series, 1.5 mm. × 1 mm. wide, green to scarious; Receptacle, naked. Described fromColl. No. 1767, 1 Sep 2017. Note: It is important to note presence or absence of a basal rosette when collecting.

- Ranson/Edwards Homestead Open Space Park, Rocky alluvial ridge. Somewhat ambiguous as to variety, but most like var. pacifica if infraspecific names are to be applied. High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 250 meters southwest on the slope above the road. Tom Schweich 1767. 1 Sep 2017. ( Golden JCOS s.n. KHD00065169 UCR ) . .

Artemisia campestris L. ssp. pacifica (Nutt.) Peck.  Field Sagewort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm., longer lived than biennial; Stem, 4± per caudex, reddish; Leaves, basal mostly withered, cauline, 8 mm. × 0.6 mm. wide, narrowly oblanceolate, tomentose; Inflorescence, 130 mm. × 20 mm. wide; Heads, many, 2 mm. × 2 mm. wide; Phyllaries, 2+ series, 1.5 mm. × 1 mm. wide, green to scarious; Receptacle, naked. Described fromColl. No. 1767, 1 Sep 2017. Note: It is important to note presence or absence of a basal rosette when collecting.

- Ranson/Edwards Homestead Open Space Park, Fairly dry, exposed prairie on small ridge between watercourses. Also observed/collected nearby: Toxicodendron rydbergii and Solidago nana. Same as Coll. No. 2207. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.1 mi. north on Plainview Road, then 500 m. west on a small ridge, 19.4 km. north northwest of the GNIS location of Golden. Tom Schweich 2206. 27 Aug 2019. ( Golden ) Fairly dry, exposed prairie on small ridge between watercourses. Also observed/collected nearby: Toxicodendron rydbergii and Solidago nana. Same as Coll. No. 2206. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.1 mi. north on Plainview Road, then 620 m. west on a small ridge, 19.4 km. north northwest of the GNIS location of Golden. Tom Schweich 2207. 27 Aug 2019. ( Golden OBI ) . .

Artemisia dracunculus L.  (Syn: Oligosporus dracunculus (L.) Poljakov ssp. glaucis (Pall. ex Willd.) A. Löve & D. Löve ) Tarragon, Dragon Wort. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver formation. Occasional with mixed vegetation including Chrysothamnus nauseosus, C. nauseosus ssp. graveolens, Asclepias pumilis, Adenolinum lewisii. Front Range, South Table Mt, Meadow W of Quaker Road and S of Hill 60220. 13N 0483972E 4398546N. Loraine Yeatts 2224. 26 Sep 1989. ( COLO00112136 KHD27209 ) . .

Artemisia frigida Willd.  Prairie Sagewort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 30 cm., woody at base; Stems many; Leaves alternate, 9 mm., pinnately dissected into 7 parts, silvery hairy; Inflorescence raceme-like, indeterminate, heads 1-3 in axils; Heads have only disk flowers, all alike; Involucre of hairy phyllaries; Phyllaries in 2 series, hairy, not gummy or with tips recurved; Receptacle hairy, not chaffy or bristly; Flowers fertile; Pappus absent; (Described from Coll. No. 1067, 8 Oct 2014).

- North Table Mountain Park, Rocky slope with little soil development near rim of mesa, growing with Brickellia. Near the south rim of North Table Mountain, accessed by way of the Golden Cliffs Trail, 1.5 km north northeast of the GNIS location of Golden. Tom Schweich 1067. 9 Oct 2014. ( CAS UC2045775 UCR266094 ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 8/28/2015. .

- South Table Mountain, Extremely common on S facing slope below mesa edge in lava clay soil. South Table Mountain. 13N 0484199E 4399201N. Loraine Yeatts 675. 11 Jul 1983. ( BRY215667 COLO00043281 KHD19335 ) . .

Artemisia ludoviciana Nutt.  Silver Wormwood. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, In a grassy low spot away from established drainage. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, then 535 m. west of Plainview Road. Tom Schweich 1281. 28 Aug 2015. ( CAS EIU JCOS s.n. KHD00062048 OBI83256 UC UCR267478 ) .

- South Table Mountain, In occasional patches along hardpacked clay road South Table Mountain, along road to castle rock. 13N 0482899E 4400495N. Loraine Yeatts 811. 20 Aug 1983. ( COLO00045195 KHD19336 ) . .

Bidens frondosa L.  Devil's Beggartick. CalPhotos. Jepson eFlora. SEINet Taxon.

Herbs, 18-28 cm.; Leaves, basal, unknown, cauline, opposite, 50 mm. × 40 mm. wide, pinnately compound, leaflets, #3, 25 mm. × 12 mm. wide, margin, serrate; Inflorescence, head enclosed in an involucre, 5-6 mm. wide; Phyllaries, outer, #5, 12 mm. × 2 mm. wide, green, inner, many, 5.5 mm. × 2.5 mm. wide, brown, margin, scarious (similar to the paleae); Receptacle, paleate; Paleae, 5 mm. × 1.7 mm. wide, margin, scarious; Corolla, 1.5 mm., orange-yellow; Pappus, #2, barbed awns, 1.5 mm.; Achene, 2-5-2.8 mm. × 1.5 mm. wide, very flat, hairy (Described from Coll. No. 2202, 27 August 2019).

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 19.4 km. north northwest of the GNIS location of Golden, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. north on Plainview Road, then 290 m. west to a small reservoir. Tom Schweich 2202. 27 Aug 2019. ( Golden OBI ) Edge of an ephemeral stream, with Heliomeris multiflora, Lsyimachia ciliata, Mentha arvensis, and Lycopus americanus. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.1 mi. north on Plainview Road, then 725 m. west to an ephemeral stream, 19.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2210.1 27 Aug 2019. ( Golden ) . .

Brickellia californica (Torrey & A. Gray) A. Gray.  California Brickelbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich 7/30/2015. Growing in cracks of cliffs and talus just below cliffs. Tom Schweich 10/12/2015. Near top of south side of North Table Mountain, at the base of the lower set of basalt cliffs, 220 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1546. 1 Sep 2016. ( COLO02348654 EIU JCOS s.n. KHD00063965 OBI83343 UC ) .

- South Table Mountain, in pit of disturbed area of lava gravel; little other vegetation. USA, Colorado, Jefferson County, S. Table Mt. 13N 0484200E 4499700N Loraine Yeatts 832. 9 Sep 1983. ( COLO00051870 KHD19329 ) Top of Castle Rock. Tom Schweich 10/19/2019. . .

Brickellia eupatorioides (L.) Shinners.  False Boneset. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, alternate, short-petioled (2 mm.), 48 mm. × 7 mm. wide, lanceolate, tip obtuse, margin entire, glandular-punctate, sparsely strigose; Inflorescence, corymbiform, heads in groups of 4-5; Involucre, 8.5 mm. × 6 mm. wide; Phyllaries, 3+ series, graduated, 2-8.5 mm. × 0.5 mm. wide, prominently veined “longitudinally striate,” margin scarious, tip acuminate to spinulose; Receptacle, epaleate; Disk flowers, #19, corolla, 7 mm., yellow; Pappus, plumose bristles, 6 mm.; Cypsela, many ribs (maybe 10). (Described from Coll. No. 1553, 1 Sep 2016.)

- North Table Mountain Park, Common in bed of ephemeral stream, in an upper portion of a watercourse draining southeast to Clear Creek through an unamed canyon. Many Eriogonum alatum at this location. Top of North Table Mountain, adjacent to the North Table Loop, 285 m. north of the USBR monument designated “North Table,” 1.8 km. north of the GNIS location of Golden. Tom Schweich 1553. 1 Sep 2016. ( JCOS s.n. KHD00063999 ) .

- South Table Mountain, South Table Mountain near Golden. 13N 0483016E 4400491N. Berta Anderson, with Loraine Yeatts 1946. 25 Sep 1984. ( KHD24159 ) Sloping E facing roadcut. S Table Mt. Loraine Yeatts 817. 29 Aug 1983. ( CS79096 KHD7805 ) A lava capped mesa in the Denver Formation; growing with Kuhnia rosmarinifolia which is much more common. USA, Colorado, Jefferson County, S. Table Mt.; at edge of mesatop rd. N. of Quaker Rd. gate . Loraine Yeatts 1095. 18 Sep 1984. ( COLO00052209 KHD20720 ) South Table Mesa near Golden. 13N 0483016E 4400491N. Loraine Yeatts, with Berta Anderson? 1945. 24 Sep 1984. ( KHD24158 ) . .

Carduus nutans L.  (Syn: Carduus nutans L. ssp. macrolepis (Peterman) Kazmi ) Nodding Plumeless Thistle. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 55 cm., tap-rooted, branched at base; Leaves, basal, withered at flowering, cauline, alternate, decurrent 40 mm. + blade 75 mm. × 25 mm. wide, pinnately lobed, margins spiny; Inflorescence, single heads on spiny tomentose peduncles 2.5-15 cm.; Phyllaries, many graduated series, 9-20 mm. × 1-3 mm. wide, thick at base, mostly green, purplish at margins, mid-vein prominent, tip spiny; Receptacle, alveolate (honeycombed), flat, bristly; Disk flowers, 25 mm., color purple; Pappus, capillary bristles, 18 mm. (Described from Coll. No. 1517, 24 July 2016.)

- Lippincott Property, One rosette seen. Tom Schweich, with Irene Weber 4/24/2019. .

- Ranson/Edwards Homestead Open Space Park, Northwest-facing slope above ephemeral stream. Introduced. Colorado Noxious Weed List B. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 560 m. downhill to northeast; 16.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1517. 24 Jul 2016. ( EIU JCOS s.n. KHD00063455 OBI83332 ) .

- South Table Mountain, S. Table Mountain, locally abundant at base of seeping lava cliff. 13N 0483373E 4399567N. Loraine Yeatts 645. 3 Jul 1983. ( COLO00053728 KHD19330 ) . .

Carthamus lanatus L.  Wooly Distaff Thistle. Weed: CO DofA, List: Watch. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, occasional on dry hillside w/ Snakeweed, Bush Sunflower and Artemesia ludoviciana. Suth Table Mtn on unmarked, unnamed trail accessed from 19th St in City of Golden to base of mtn. Collection site located about 100 yds from tralhead. NAD27. 13 0482145E 4399989N. Stanley Smookler 504. 4 Aug 2009. ( KHD46919 ) . .

Centaurea diffusa Lam.  (Syn: Acosta diffusa (Lam.) Soja' k ) White Knapweed. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

Biennial/Perennial herb, to 50 cm.; Leaves, cauline, alternate, 30 mm. × 12 mm. wide, pinnately lobed, much reduced and entire above, spine-tipped, margins not spiny; Inflorescence, heads borne singly, flowers of one kind; Involucre, 10 mm.; Phyllaries, 4+ series, graduated, 3.5-10.0 mm., all spine tipped, outer and middle with marginal fringe spines; Receptacle, flat, epaleate, bristly; Disk flowers, inner bisexual, Corolla, tube 7.5 mm. + lobes 3 mm., white; Pappus, 0, or very thin ring of scales. Described from Coll. No. 1233, 20 Jul 2015.

- North Table Mountain Park, Colorado Noxious Weed List B species. Northern portion of North Table Mountain, 205 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1233. 20 Jul 2015. ( CDA JCOS s.n. KHD 00062051 UC UCR267458 ) .

- Ranson/Edwards Homestead Open Space Park, Large patch, determination tentative. Tom Schweich 7/26/2015. .

- South Table Mountain, On N. side of road with Phlox hoodii, P. longifolia, Castilleja chromosa, Alyssum desertorum, Cympoteris bulbosus, C, purpurescens, Lomatium grayi, Atriplex confertifolia, Trifolium gymnocarpum, Seriphidium vaseyanum, scattered Juniperus osteosperma S. Table Mt.; on mesatop near old road. 13N 0484100E 4399700N. Loraine Yeatts 801. 20 Aug 1983. ( COLO 00026658 KHD19331 ) . [ Both KHD vouchers of this collection carry the same herbarium ascension number. ] .

Cichorium intybus L.  Common Chicory. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 70 m. west of Plainview Road. Tom Schweich 1223. 16 Jul 2015. ( JCOS s.n. KHD00062054 UC ) . .

Cirsium arvense (L.) Scop.  (Syn: Breea arvensis (L.) Lessing ) Canada Thistle. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 70 cm., tap-rooted; Leaves, cauline, alternate, sessile but not obviously decurrent, 85 mm. × 20 mm. wide, margin sinuate, spiny, adaxial thinly tomentose, abaxial tomentose; Inflorescence, panicle(?); Heads, many, 30±, 15 mm. × 8 mm. dia., disk flowers only, dioecious, staminate heads, pappus < corolla, pistillate heads, pappus > corolla; Phyllaries, many (6-7) series, outer 3 mm. × 1.5 mm. wide, inner 15 mm. × 1 mm. wide, dark dorsal ridge, tips, spinulose, reflexed; Receptacle, soft bristles, 10 mm.; Pappus, plumose bristles (Described from Coll. No. 1512, 24 July 2016).

- Ranson/Edwards Homestead Open Space Park, Mixed grasses and forbs, just below the ponderosa pine zone. Lightly grazed in 2016. Colorado Noxious Weed List B. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 80 m. northwest; 16.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1512. 24 Jul 2016. ( CDA EIU JCOS s.n. KHD00063469 ) High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. Tom Schweich 1685. 28 Jun 2017. ( JCOS s.n. KHD00065409 ) .

- South Table Mountain, in boggy seepage area at head of gentle gully. S. Table Mt. 13N 0484100E 4399300N. Loraine Yeatts 708. 16 Jul 1983. ( COLO00051771 KHD19333 ) . .

Cirsium undulatum (Nutt.) Spreng.  Wavy Leaved Thistle. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial thistle, to 30 cm., stout tap root; Stem, leafy, 20 cm.; Leaves, basal and cauline, basal, petiole 25 mm. + blade 180 mm. × 55 mm. wide, oblanceolate, pinnately lobed more than half-way to mid-rib, cauline, reduced above, decurrent 5 mm., 45 mm. × 14 mm. wide, lanceolate, surface, adaxial, thinly tomentose, abaxial, tomentose, margins, spiny; Head, 35 mm. × 40 mm. wide, indented around top of peduncle; Phyllaries, many (7?) series, 13 mm. × 3.5 mm. wide, + robust spine 5-6 mm., body dark dorsal ridge, outer and middle reflexed; Flowers, 1 kind; Disk flowers, 25-36 mm., corolla pink-purple; Pappus, plumose bristles; Cypsela, 5 mm., apical collar unremarkable. (Described from Coll. No. 1460, 27 June 2016).

- Ranson/Edwards Homestead Open Space Park, Mixed grasses and forbs on a dry alluvial terrace. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.3 mi. north on Plainview Road, then 195 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1460. 27 Jun 2016. ( EIU JCOS s.n. KHD00063456 ) .

- South Table Mountain, S. facing mesa top slope. S. Table Mt.; near summit of S. facing mesatop slope Loraine Yeatts 646. 3 Jul 1983. ( KHD19320 KHD19321 ) . .

Conyza canadensis (L.) Cronquist.  (Syn: Erigeron canadensis (L.) Cronquist ) Canadian Horseweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, along road to quarry near mesatop S. Table Mt. 13N 0484260RE 4399600N; Loraine Yeatts 775. 9 Aug 1983. ( COLO00062232 KHD19158 ) . .

Coreopsis tinctoria Nutt.  Golden Tickseed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, lava capped mesa in Denver Formation. Roadside at Quaker Rd. gate, S Table Mt. 13N 0482564E 4400611N. Loraine Yeatts 944. 4 Jul 1984. ( CS79394 KHD20384 ) In dried clayey mud of small depression bounded by mesatop grassland; w/ Critesion jubatum, Alyssum parviflorum, Artemisia ludoviciana, Anisantha tectorum ...; a few plants locally & occasional in similar habitats. Middle lava flow of Tertiary Table Mt. shoshonite, in Denver Formation. South Table Mt., NREL property on S. side of mesatop. middle lava flow of Tertiary Table Mt. shoshonite, in Denver Formation. UTM: 12N0484762E 4899105N Loraine Yeatts, with Maureen O'Shea-Stone 4605. 25 Jun 2001. ( COLO00568923 ) . .

Crepis atribarba A. Heller.  CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Falcon Park, Edge of bike and hiking trail bounded by Cercocarpus montanus shrub community; in hardpacked gritty soil with Adenolinum lewisii and grasses Precambrian shist and gneiss. Ca 40 plants locally, but only place seen along trail USA, Colorado, Jefferson County, Mt. Falcon Open Space Park S of Morrison. Loraine Yeatts 5487. 2 Jun 2007. ( KHD43617 ) . .

Crepis occidentalis Nutt.  (Syn: Psilochenia occidentalis (Nutt.) Nutt. ) Largeflower Hawksbeard. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herb, to 25 cm., taprooted; Stem, green, tomentose, glandular, no bristles; Leaves, basal and cauline, alternate, petiole 20 mm. + blade 56 mm. × 17 mm. wide, reduced distally, pinnately lobed nearly to mid-rib, segments deltoid, tomentose, glandular; Inflorescence, heads #3 per stem, showy, >leaves; Peduncles, 23 mm.; Involucre, 12 mm. × 12 mm. wide, cyindric, tomentose; Phyllaries, 2 graduated series, 3.5 mm. &tmes; 2 mm. wide, deltoid, 12.5 mm. × 3 mm. wide, lanceolate, ±flat, tomentose, gland-tipped black bristles evenly distributed; Receptacle, epaleate; Ray flowers (ligules), many, tube 6 mm. + blade 12.5 mm. × 2.4 mm. wide, yellow; Pappus, 9 mm. well-developed, bristles, ±equal, smooth; Fruit, 2 mm. × 1.3 mm. wide, brown, glabrous. (Described from Coll. No. 1894, 28 May 2018).

- South Table Mountain, On steep bank along road. Intermountain park; sagebrush and open lodgepole pine forest. S. Table Mt. along Quaker Rd. just past Golden Hills Rd. 13N 0484200E 4398800N. Loraine Yeatts 576. 16 Jun 1983. ( COLO00122267 KHD19321 ) . .

Cyclachaena xanthiifolia (Nutt.) Fresen.  (Syn: Iva xanthiifolia Nutt. ) Carelessweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, South Table Mountain; on both sides of Quaker Rd. above Golden Hills Rd. 13N 0484300E 4399100N. Loraine Yeatts 815. 29 Aug 1983. ( COLO00062828 KHD19407 ) . .

Dieteria bigelovii (A. Gray) D. R. Morgan & R. L. Hartman.  (Syn: Machaeranthera b. (A. Gray) Greene ) Bigelow's Tansy Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm.; Stem erect, stipitate-glandular, more dense above; Leaves, basal, unknown, cauline, alternate, sessile, 50 mm. × 4-5 mm. wide, reduced above, lance-linear, spinulose toothed; Inflorescence, panicle, heads borne singly on pedicels 10-20 mm.; Involucre, 8 mm. × 12 mm. wide; Phyllaries, 5+ series, imbricate, chartaceous below, green and stipitate-glandular above, tips, acuminate, reflexed; Receptacle, epaleate; Flowers of 2 kinds; Rays, fertile, corolla, tube 4.5 mm. + laminae 10 mm. × 1.5 mm. wide, spatulate, blue; Disk flowers, corolla, 6 mm., yellow; Pappus, capillary bristles, 6 mm.; Cypsela, 3 mm., hairy. Described from Coll. No. 1299, 23 Sep 2015.

- Ranson/Edwards Homestead Open Space Park, Resprouting laterally after having been eaten. Bank below Plainview Road, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.8 mi. north on Plainview Road; 16.0 km. north northwest of the GNIS location of Golden. Tom Schweich 1565. 28 Sep 2016. ( JCOS s.n. KHD00066686 ) .

- South Table Mountain, South Table Mountain; Along road to Castle Rock on mesa top. 13N 0482700E 4400400N. Loraine Yeatts 844. 13 Sep 1983. ( COLO00106120 KHD19402 ) . .

Dyssodia papposa (Vent.) Hitchc.  Fetid Marigold. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 15 cm., tap-rooted, most surfaces with scattered 0.4 mm. elliptical brown oil glands; Leaves, cauline, 28 mm. × 12 mm. wide, reduced above, pinnafitid, ±sessile; Heads, borne singly on leafy stems; Phyllaries, 2+ graduated series, 3 mm. × 1 mm. wide, lanceolate, to 6 mm. × 2.7 mm. wide, elliptic, 5-9 brown oil glands; Receptacle, epaleate; Flowers, 1 kind; Disk flowers, 2.8 mm., yellow; Pappus, scales, dissected to appear to be bristles, 3 mm.; Cypsela, 4 mm., black. (Described from Coll. No. 1540, 18 August 2016.)

- North Table Mountain Park, On edge of private horse pasture. Lower north slopes of North Table Mountain, on North Table Loop trail, at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1540. 16 Aug 2016. ( KHD00065750 ) .

- South Table Mountain, along road Collection by Environmental Science & Engineering, Englewood, Colorado, S. Table Mountain, along road near S rim of mountain. 13N 0483567E 4400080N. Janet L. Wingate 2735. 30 Aug 1983. ( KHD22199 ) overgrown road up gentle south facing slope. South Table Mountain; in center of overgrown road up gentle south facing slope near mesa top. 13N 0484100E 4399700N. Loraine Yeatts 819. 29 Aug 1983. ( COLO00063586 KHD19322 ) . .

Ericameria nauseosa (Pall. ex Pursh) G.L.Nesom & G.I.Baird var. graveolens (Nutt.) Reveal & Schuyler.  (Syn: Chrysocoma dracunculoides Pursh [misapplied] , Chrysocoma graveolens Nutt. , Chrysothamnus graveolens (Nutt.) Greene , Chrysothamnus nauseosus (Pall.) Britton ssp. graveolens (Nutt.) Piper , E. n. (Pall. ex Pursh) G.L.Nesom & G.I.Baird var. glabrata (Gray) G.L. Nesom & Baird ) CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial shrub, woody at base, to 1 m., sprawling to erect; Stem covered with felt-like tomentum (long hairs infiltrated with resin, must scrape with knife to expose); Leaves, alternate, lance-linear, 70 mm. × 3 mm., not twisted in the manner of some related species, upper surface tomentose, margin entire; Heads discoid (with only disk flowers), cymose at ends of branches, narrowly tubular; Involucre 8 mm., not spiny; Phyllaries in 3 vertical ranks, outer << inner, keeled, some with few short hairs; Receptacles not chaffy, but have some short (<0.5 mm.) appendages between flowers; Flowers #5; Corolla tube (i.e., petals united at base) 7.5 mm. + lobes #5, 1 mm., glabrous throughout; Ovary inferior; Pappus of bristles, 6-7 mm., white; Stamens 5; Anthers connate (united), 2 mm., acute at base; Style 11 mm., branches half-round in cross-section, stigmatic 1 mm. + appendage 2 mm., glabrous inside, uniformly short hairy on outside, tips rounded; cypselae, all similar in shape, 5 mm., short hairy. Not known from California. In Ackerfield (2012), Asteraceae, Key 2, 15a-b, a question of how tomentose the stems and leaves are made keying tricky. Described from Collection No. 1063, 17 September 2014.

- South Table Mountain, roadside. uncommon, S. Table Mt.; along Quaker Rd. 13N 0484300E 4399200N. Loraine Yeatts 843. 13 Sep 1983. ( COLO00056044 KHD19332 ) . .

Ericameria nauseosa (Pall. ex Pursh) G. I. Nesom & G. I. Baird var. nauseosa.  (Syn: Chrysothamnus nauseosus (Pall.ex Pursh) Britton ssp. nauseosus ) Rubber Rabbitbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, a lava capped mesa in the Denver Formation; gentle slope draining into NE. facing gulley; with C. n. ssp. graveolens. MVNC S-U, 25-27, S. Table Mt.; mesatop slope draining into NE. facing gully overlooking Rolling Hills Country club. 13N 0484100E 4400300N. Loraine Yeatts 1085. 18 Sep 1984. ( COLO00056713 KHD20730 ) . .

Erigeron divergens Torr. & A. Gray.  Spreading Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual or short-lived perennial, to 15 cm., tap-rooted, ±spreading hairy throughout, becoming minutely glandular above, hairs multicellular with clear crosswalls; Leaves, basal, absent or withered; cauline, alternate, petiole ±10 mm. + blade ±12 mm. × 2.4 mm. wide, uniformly hairy, somewhat reduced above; Inflorescence, heads borne singly on leafy stems, peduncles spreading or decurved, but cannot be described as “heads nodding;” Involucre, 3 mm. × limb 12 mm.; Receptacle, epaleate; Flowers, 2 kinds; Rays, corolla, 3.5 mm., white fading blue; Disk flowers, corolla, 1.7 mm., yellow; Pappus, short scales and longer capillary bristles, similar on ray and disk flowers; Cypsela, 0.8 mm. (Described from Coll. No. 1489. 13 July 2016).

- North Table Mountain Park, In thin soils or cracks of basalt caprock, near the edge of prairie dog town. Top of North Table Mountain, along an old road and former powerline headed in the general direction of the radio station, 2.6 km. north of the GNIS location of Golden Tom Schweich 1489. 13 Jul 2016. ( CS JCOS s.n. KHD00063464 UC ) Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, about half-way north from North Table Loop in the direction of Ramstetter Reservoir, 3.85 km. north of the GNIS location of Golden. Tom Schweich 1879. 23 May 2018. ( JCOS s.n. KHD00069211 ) .

- South Table Mountain, in soil pocket, S. Table Mt.; on top of Castle Rock. 13N 0482000E 4400400N. Peter G. Root 8311. 1 Jul 1983. ( KHD19410 ) .

- White Ranch Park, Habitat: appearing on grassy south-facing slopes throughout the park--no shade USA, Colorado, Jefferson County, White Ranch Park. Verbatim Coordinates: 13N 0476275E 4407224N Berta Anderson 1282. 21 Sep 1977. ( KHD29779 ) Habitat: on south-facing slopes USA, Colorado, Jefferson County, White Ranch Park, Rawhide trail. Verbatim Coordinates: 13N 0476275E 4407224N. Berta Anderson 1283. 17 Oct 1979. ( KHD29736 ) . .

Erigeron flagellaris A. Gray.  Trailing Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 5-6 cm., with scapose inflorescence to 9 cm., spreading by leafy stoloniferous branches; Leaves, basal and cauline, entire, basal, linear-oblanceolate, 35 mm. × 2.5 mm., cauline, linear, 13 mm. × 1.5 mm.; Inflorescence, single heads on scape to 8 cm.; Receptacle epaleate; Phyllaries, 2+series, ±equal, 4 mm., hairy abaxially, ascending multicellular hairs with clear crosswalls, glandular between hairs; Flowers of 2 kinds; Pappus of bristles, 2 mm., + short scales, that of ray and disc flowers alike; Rays, #±80, corolla white, fading lilac, 8 mm. × 0.5 mm.; Disc flowers, corolla yellow, lobes triangular; Achene, short hairy. (Described from Coll. No. 1116, 28 May 2015).

- North Table Mountain Park, Expected. Tom Schweich 6/12/2017. .

- Ranson/Edwards Homestead Open Space Park, Not common in Jefferson County, but with several other nearby collections, e.g., from Rocky Flats and around the mouth of Coal Creek Canyon. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 65 m. east of Plainview Road. Tom Schweich 1116. 28 May 2015. ( CAS JCOS s.n. KHD56969 UC UCR265987 ) Along old road in the direction of the original homestead. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.3 miles north on Plainview Road, then 20 meters east into open prairie. Tom Schweich 1679. 28 Jun 2017. ( CDA Golden JCOS s.n. KHD00065481 ) . .

Erigeron pumilus Nutt.  Shaggy Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, 7.5' Golden quad,S. Table Mountain, a few plants along S. side of road to Castle Rock. 13N 0482800E 4400252N. Loraine Yeatts 587. 24 Jun 1983. ( COLO00083832 KHD19324 ) . [ “outer pappus of bristles” in annotation by Weber suggests var. intermedius. ] .

Erigeron tracyi Greene.  (Syn: Erigeron cinereus A. Gray , Erigeron colomexicanus A. Nelson , Erigeron divergens Torrey & A. Gray var. cinereus A. Gray ) Running Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, 20-25 cm., caudex simple (not stout) non-rhizomatous, hairy throughout, with hairs 0.2-0.4 mm. spreading in all directions, glandular at high magnification; Stem, some with prior year's branches assumed to have been stoloniferous; Leaves, basal and cauline, basal, petiole, to 26 mm. + blade oblanceolate 8-12-20 mm. × 2-4-5.5 mm. wide, short hairy and glandular (especially visible at high magnification), margin entire, tip acute, some withered at flowering time, cauline, ±sessile, reduced or not well-developed above, but up to 32 mm. × 1.8 mm. wide; Peduncle, spreading to descending multicellular hairs with clear crosswalls, slightly pustular (maybe) or glandular at high magnification; Phyllaries, in 2+ ±equal series, but not distinctly imbricate, 3-4.5 mm. × 0.7 mm. wide, lanceolate, green center, light margins, spreading hairy; Receptacle epaleate; Flowers, 2 kinds; Ray flowers, cypsela 0.5 mm. + tube 2 mm. + ligule 4 mm. × 0.3-0.6 mm. wide = 6.5-7 mm. × 0.8 mm. wide, fertile, tip rounded, white & pink fading purple; Disk flowers, yellow; Pappus, ray and disk alike, inner, few capillary bristles, 4 mm., outer, short crown of scales, double pappus not particularly disgnostic in Erigeron. The most common form of E. tracyi is perhaps (speculative) a stabilized, apomictic hybrid between E. flagellaris and E. divergens (FNANM). Described from Coll. No. 1133, 9 Jun 2015 and Coll. No. 1337, 11 May 2016.

- North Table Mountain Park, Very thin soil on volcanic caprock of mesa. Mesa top, southeast portion of North Table Mountain, 3.3 km northeast of the GNIS location of Golden. Tom Schweich 1133. 9 Jun 2015. ( JCOS s.n. KHD56940 UC UCR265984 ) .

- Ranson/Edwards Homestead Open Space Park, Observed on CoNPS field trip, coordinates approximate. Tom Schweich 6/10/2018. .

- South Table Mountain, among rocks on SW facing slope. South Table Mountain. 13N 0482700E 4400200N. Janet L. Wingate 2443. 16 Jun 1983. ( KHD14314 ) a lava capped mesa in the Denver Formation; on W. facing slope along tr. in open area between shrubs S. Table Mt.; on W. facing slope along tr. below Castle Rock. 13N 0482100E 4400100N. Loraine Yeatts 932. 25 Jun 1984. ( COLO00069302 CS85541 KHD20725 KHD20934 ) W. facing slope. S. Table Mt. Below Castle Rock along trail. UTM: 822002. Mary E. Edwards 436. 1 Jun 1983. ( COLO00064923 ) . .

Erigeron vetensis Rydb.  Early Bluetop Fleabane. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 12 cm., sparse multicellular hairs with clear crosswalls to 0.8 mm., plus very small (<0.1 mm.) peg-like glands, throughout; Leaves, basal, petiole 45 mm. + blade 65 mm. × 5 mm. wide, narrowly oblanceolate, cauline, reduced in size, #4-5, sessile, 15 mm. × 2.1 mm. wide, oblanceolate; Inflorescence, scapose, 21 cm.; Heads, mostly borne singly; Involucre, 5 mm. × 11 mm. wide; Phyllaries, subequal, in 2 rows, 5 mm. × 0.7 mm. wide, margins not ciliate, tip acuminate; Flowers of 2 kinds, Ray flowers, fertile, corolla, 11 mm. × 1.6 mm. wide, ±white, fading blue; Disk flowers, corolla, 4.0 mm., yellow, lobes triangular, style branch appendages triangular; Pappus, short (0.3 mm.) and long (2.2 mm.) capillary bristles; Cypsela, 1.5-1.6 mm. (Described from Coll. No. 1421, 10 Jun 2016).

- Ranson/Edwards Homestead Open Space Park, Small ridge between two drainages, grasses and a few ponderosa pines. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.8 mi. north on Plainview Road, then 300 m. southwest upslope.15.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1421. 10 Jun 2016. ( CAS JCOS s.n. KHD00063991 OBI83311 UC UCR277989 ) . .

Gaillardia aristata Pursh.  Blanketflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, alternate, entire to toothed; Inflorescence, single heads on peduncles 13-18 cm., flowers of 2 kinds; Phyllaries, 2+ series, 17 mm. × 2.7 mm. wide, lance-linear; Receptacle, epaleate, setae, to 10 mm.; Rays, sterile, corolla, 21 mm. × 10 mm. wide, yellow, deeply 3-lobed; Disk flowers, corolla, 7 mm., purple; Pappus of 6+ aristate scales, 4 mm., awn 2×> body. Described from Coll. No. 1205, 12 Jul 2015.

- Lippincott Property, Also collected here: Bromus japonicus, Dianthus armeria, Heterotheca villosa, Potentilla recta, and Veronica anagallis-aquatica. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2116. 1 Jul 2019. ( Golden ) Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2117. 1 Jul 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Mostly grasses and forbs; collected with Rosa arkansana and Crataegus succulenta. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the south side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1454. 27 Jun 2016. ( CAS EIU JCOS s.n. KHD00063470 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation. West of Quaker Road, North of Golden Hills Road, in meadow on North side of hill 6020. 13N 0483567E 4400080N. Loraine Yeatts 1268. 5 Jun 1986. ( COLO00088997 KHD24220 ) . .

Gnaphalium uliginosum L.  Marsh Cudweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Ground cover in patches. Unsure if P. pensylvanica in the associated taxa is Potentilla or Prunus. South Table Mt., a lava capped mesa in the Denver Formation; flat quarry area, recently dried with seedling cottonwoods, chenopodium, cyperus lava capped mesa in Denver formation. 13N 0484300E 4400000N. Loraine Yeatts 1072. 18 Sep 1984. ( COLO00089557 KHD20728 ) . .

Grindelia squarrosa (Pursh) Dunal.  Curlycup Gumweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Also collected here: Heterotheca foliosa, Pericome caudata, Senecio spartioides, and Urtica dioica. Variety squarrosa per leaf proportions in Ackerfield (2015) if infraspecific names are to be applied. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, among boulders on the south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2213. 29 Aug 2019. ( Golden OBI ) .

- North Table Mountain Park, Gentle grassy slope above oldest lava flow. Northwest corner of North Table Mountain, lower elevation lobe of the mesa, formed on top of the oldest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1737. 15 Aug 2017. ( JCOS s.n. KHD00065318 UCR ) .

- Ranson/Edwards Homestead Open Space Park, Scattered throughout this field. Tom Schweich 7/29/2015. High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 35 meters southwest on the slope above the road. Tom Schweich 1765. 1 Sep 2017. ( Golden JCOS s.n. KHD00065168 ) .

- South Table Mountain, S. Table Mountain, common on mesa top.13N 0484099E 4400109N. Loraine Yeatts 803. 20 Aug 1983. ( KHD19411 ) . .

Grindelia subalpina Greene.  Subalpine Gumweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, hardpacked clay. Along Quaker Rd, on S. Table Mountain. 13N 0483016E 4400482N. Loraine Yeatts 802. 20 Aug 1983. ( KHD19412 ) . .

Gutierrezia sarothrae (Pursh) Britton & Rusby.  Broom Snakeweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, tap-rooted, to 9 cm.; Leaves, alternate, linear, 20 mm. × 1 mm. mm. wide, dotted with embedded oil glands, very few short hairs; Peduncle, 0.5-1.5 mm.; Inflorescence, some flowers with strap-shaped corollas, flowers of two kinds in same heads, Involucre, 3.5 mm. × 2.5-3.0 mm. wide, obconic, not gummy; Phyllary, 2-3 unequal series, inner folded around ovary of ray flowers, dotted with embedded oil glands, tips appressed; Receptacle, epaleate; Rays, #5, yellow; Disk, #4; Pappus, a well-developed crown of scales on both ray and disk flowers; (Described from Coll. No. 144, 3 Oct 1997: keys easily to Gutierrezia sarothrae. However, inner phyllaries are folded around ovary of ray flowers, a character not mentioned in keys or description.)

- Lippincott Property, Open recent growth ponderosa pine woodland, also seen/collected here: Achnatherum nelsonii, and Elymus elymoides. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, approx. centroid of parcel, atop spoils pile of clay pit, 22.5 km. north northwest of the GNIS location of Golden. Tom Schweich 2211. 29 Aug 2019. ( Golden OBI ) .

- North Table Mountain Park, Mixed grasses, subshrubs, and forbs. West-facing slope on the north side of North Table Mountain, 0.92 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1543. 18 Aug 2016. ( EIU JCOS s.n. KHD00063969 ) Top of North Table Mountain, near southern edge, 360 m. east of the USBR monument designated “North Table,” 1.6 km. north northeast of the GNIS location of Golden. Tom Schweich 1550. 1 Sep 2016. ( COLO02348456 CS JCOS s.n. KHD00064002 ) .

- Ranson/Edwards Homestead Open Space Park, Steep south-facing slope, with a prairie rose, blue grama, and artemisia. High plains above Rocky Flats, 16.25 km north northwest of Golden, 1.8 miles north of CO State Highway 72 on Plainview Road, then 105 m. west of Plainview Road. Tom Schweich 1289. 9 Sep 2015. ( CAS JCOS s.n. KHD00062159 OBI83228 UC UCR267486 ) .

- South Table Mountain, South-facing gentle slope near meatop. South Table Mountain. 13N 0482324E 4400917N. Loraine Yeatts 820. 8 Aug 1983. ( COLO00091546 KHD19323 ) . .

Helianthus annuus L.  Common Sunflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, On south facing slope, near mesa edge in lava, clay soil. South Table Mountain. 13N 0484205E 4399301N. Loraine Yeatts 684. 11 Jul 1983. ( KHD19325 ) On mesa edge in disturbed ground; very common and widespread especially along roads. S. Table Mt.; on Mesa edge. UTM: 841993 Loraine Yeatts 705. 16 Jul 1983. ( COLO00093781 ) . .

Helianthus pauciflorus Nutt. ssp. subrhomboideus (Rydb.) O. Spring & E. Schilling.  (Syn: Helianthus rigidus (Cass.) Desf. ssp. subrhomboideus (Rydb.) Heiser , Helianthus subrhomboideus Rydb. ) Stiff Sunflower. CalPhotos. Jepson eFlora. SEINet Taxon.

[Description pending verification of determination for Coll. No. 1260. -- 27 Dec 2015] Perennial from rhizomes (not a tap-rooted annual), to 1 mm.; Leaves, cauline, opposite, 135 mm. × 32 mm. wide, rhomboid, margin, straight, short-toothed, green, not glaucus, adaxial scabrous-hispid, abaxial scabrous; Inflorescence, solitary heads on long peduncles; Peduncle, 25 cm.; Phyllaries in 3+ imbricate series, all similar, 8-9 mm. × 4 mm. wide, ovo-lanceolate, margin, ciliate, tips, erect; Receptacle, hemispheric, paleate; Paleae, 8 mm., ciliate distally; Rays, sterile, pappus, 2 scales 2.5 mm., corolla, 24 mm. × 6 mm. wide, yellow; Disk flowers, fertile, pappus, crown of scales with 2 elongated to 4 mm., corolla, 5 mm., yellow to dark red distally; cypsela, 3.3 mm., compressed quadrangular. Described from Coll. No. 1260, 26 Jul 2015.

- Lippincott Property, Steep east-facing grassy slope. Also collected here: Heliomeris multiflora var. multiflora. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest segment of parcel, nearly up to the railroad tracks, 22.6 km. north northwest of the GNIS location of Golden. Tom Schweich 2223. 29 Aug 2019. ( Golden ) .

- North Table Mountain Park, Also at this location: Thelesperma megapotamicum, Eriogonum alatum, and E. effusum. Near the top of several small hills (toe of landslide?) on the lower north slope of North Table Mountain, 0.7 km. southeast of the Mesa Spur Trailhead on 58th Avenue, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1507. 22 Jul 2016. ( COLO2299709 CS EIU JCOS s.n. KHD00063471 ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 6/19/2017. Tom Schweich 7/28/2017. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 436 m. west of Plainview Road. Tom Schweich 1260. 26 Jul 2015. ( JCOS s.n. KHD00061672 UCR267469 ) High plains above Rocky Flats, 15.8 km north northeast of Golden, 1.4 miles north of CO State Highway 72 on Plainview Road, 194 m. northeast of Plainview Road. Tom Schweich 1267. 29 Jul 2015. ( CAS JCOS s.n. KHD00062160 OBI83238 UC ) Wet, almost swampy, area on the south side of an intermittent stream. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road, from CO Highway 93, 1.2 mi. north on Plainview Road, then 400 m. east of Plainview road, 15.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1557. 3 Sep 2016. ( COLO02348290 CS ) High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 385 meters west into open prairie. Tom Schweich 1716. 28 Jul 2017. ( Golden UCR ) Low, wet area. Also collected here: Solidago rigida var. humilis, nearby: Lactuca serriola, Sonchus asper, and Sporobolus heterolepis. High plains above Rocky Flats, 19.4 km. north northwest of the GNIS location of Golden, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. north on Plainview Road, then 125 m. west into open prairie. Tom Schweich 2199. 27 Aug 2019. ( Golden OBI ) . .

Helianthus pumilus Nutt.  Little Sunflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, cauline, alternate, occasionally opposite, then bases conjoined, simple, petiole 7-10 mm. + blade 55-86 mm. × 22-30 mm. wide, lanceolate, flat (not folded), margin, entire to lightly toothed, adaxial, pustular strigose, hairs multicellular, crosswalls clear, abaxial, glandular and strigose; Inflorescence, heads single to few on leafy stems, peduncles to 8-10 cm., hairy, glandular; Involucre, 9 mm. × 16 mm. wide; Phyllaries in 2+ series, similar, 6-10 mm. × 2.0-3.5(4) mm. wide, greene erect, ovate, strigose abaxially, margins ciliate, tip acuminate, not as “stiff” or “tough” as those of Coll. No. 1199; Receptacle, slightly convex, paleate; Disk, 17 mm. wide; Palea, 9 mm., tip, glandular, hairy distally; Flowers, 2 kinds; Ray flowers, sterile, #10-12, corolla, 17-25 mm. × (4)6-9 mm. wide, yellow; Disk flowers, corolla, 4-6 mm., yellow, lobes, #5, 1 mm., yellow, anther appendages reddish-brown; Pappus of few long (2.5-4 mm.) aristate scales; Cypsela, 3.5 mm. × 1.4 mm. wide, quadrangular,not laterally compressed black. Described from Coll. No. 1210, 1426, and 1704.

- North Table Mountain Park, Middle north slopes of North Table Mountain, above the North Table Loop trail, 3.9 km north northeast of the GNIS location of Golden. Tom Schweich 1210. 13 Jul 2015. ( JCOS s.n. KHD00062161 UCR267451 ) South side of North Table Mountain, along the Climbing Access Trail just below the uppermost basalt flow; 224 m. southeast of the USBR monument designated “North Table,” 1.44 km. north northeast of the GNIS location of Golden. Tom Schweich 1523. 5 Aug 2016. ( COLO02347920 JCOS s.n. KHD00063462 UC ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 6/29/2017. Sunflower, long coarse hairs, a few disc flowers have reddish lobes. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 360 meters west into open prairie. Tom Schweich 1715. 28 Jul 2017. ( Golden JCOS s.n. KHD00065332 ) Also collected here: Eriogonum alatum. Highest plains above Rocky Flats, 1.7 mi. west on CO Highway 72 from CO Highway 93, 1.4 mi. generally north on Plainview Road, then about 150 m. southwest onto a slightly dryer ridge above the road, 15.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1973. 13 Jul 2018. ( COLO02347623 Golden ) .

- South Table Mountain, South facing, clay soil, recent burn site. South Table Mountain, below mesa edge. 13N 0483009E 4400494N. Loraine Yeatts 610. 27 Jun 1983. ( KHD19326 ) Lava -capped mesa. Few plants on steep E. facing roadcut. S. Table Mt. Along Quaker rd. UTM: 84269932 Loraine Yeatts 771. 7 Aug 1983. ( COLO00095232 ) . .

Heliomeris multiflora Nutt. var. multiflora.  Showy Golden Eye. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Steep east-facing grassy slope. Also collected here: Helianthus pauciflorus ssp. subrhomboideus. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest segment of parcel, nearly up to the railroad tracks, 22.6 km. north northwest of the GNIS location of Golden. Tom Schweich 2224. 29 Aug 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Edge of an emphemeral stream, with Lsyimachia ciliata, Mentha arvensis, and Lycopus americanus. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.1 mi. north on Plainview Road, then 725 m. west to an ephemeral stream, 19.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2210. 27 Aug 2019. ( Golden OBI ) . .

Heterotheca foliosa (Nutt.) Shinners.  (Syn: Heterotheca villosa (Pursh) Shinners var. foliosa (Nutt.) V.L. Harms ) Hairy False Goldenaster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 40 cm.; Stem, spreading hairy, glandular; Leaves, cauline, alternate, 33 mm. × 9 mm. wide, oblong, margin entire, tip acute, appressed hairy; Peduncle, 15 mm.; Bracts, leafy, 10-16 mm. × 2.5 mm., lanceolate, some exceeding heads by 4-7 mm.; Involucre, 9 mm. × 14 mm. wide; Phyllaries, in 4+ graduated series, 4-9 mm. × 1 mm. wide, lanceolate, slightly keeled proximally, mostly green, abaxial surface glandular and hairy, margin hairy; Receptacle, epaleate, short (0.5 mm.) scales; Flowers, 2 kinds; Rays, sterile, corolla, 11 mm., yellow; Disk flowers, corolla, 7 mm., yellow; Pappus, short (0.6 mm.) and long (6 mm.) bristles, ≥disk corolla; cypsela, 1.3 mm., hairy. Described from Coll. No. 1258, 26 Jul 2015.

- Lippincott Property, Also collected here: Grindelia squarrosa, Pericome caudata, Senecio spartioides, Nepeta cataria, and Urtica dioica. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, among boulders on the south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2215. 27 Aug 2019. ( Golden OBI ) .

- Ranson/Edwards Homestead Open Space Park, North-facing slope, south of the intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 295 m. west of Plainview Road. Tom Schweich 1258. 26 Jul 2015. ( JCOS s.n. KHD00062163 UCR267471 ) [ Treated as H. foliosa (Nutt.) Shinners by Ackerfield (2015), H. villosa (Pursh) Shinners var. foliosa (Nuttall) V. L. Harms by FNANM. H. fulcrata (Greene) Shinners misapplied. ] Area with down, burned ponderosa pines, also collected here: Ceanothus fendleri, nearby Amorpha nana, Danthonia spicata, and Sorghastrum nutans. High plains above Rocky Flats, northwest corner of Ranson/Edwards, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 2.1 mi generally north on Plainview Road, then 350 m. west. Tom Schweich, with Cindy Trujillo 2226. 10 Sep 2019. ( Golden ) .

- South Table Mountain, Growing under elm tree next to road in clay soil of volcanic origin; plant branched from base with several almost erect stems. S. Table Mt. UTM: 843993 Loraine Yeatts 743. 27 Jul 1983. ( COLO00096321 ) [ Originally ID as Heterotheca villosa var. foliosa. Annotations: Heterotheca fulcrata, det. by W. A. Weber 1984. / Heterotheca foliosa (Nutt.) Shinners; A fairly distinct race of H. villosa, common in the Colorado Front Range. This has nothing to do with H. fulcrata; det. By W. A. Weber 1996. ] Along Quaker Rd, just N. of Golden Hills Rd growing under elm tree; only plant in area.. 13N 0483009E 4400494N. Loraine Yeatts 753. 27 Jul 1983. ( CS85522 KHD19395 ) . [ CS 86622 is determined H. foliosa, KHD8541 is determined H. fulcrata. H. fulcrata misapplied, per Ackerfield (2015). ] .

Heterotheca villosa (Pursh) Shinners.  (Syn: H. v. (Pursh) Shinners var. nana (A. Gray) Semple , H. v. (Pursh) Shinners var. villosa ) Hairy False Goldenaster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm.; Leaves, cauline alternate, entire, 1-veined, distal perpendicular to stems, hairs > glands; Heads solitary, with both ray and disk flowers; Phyllaries in 2+ series, unequal, to 7 mm.; Rays, 9 mm.; Pappus double, outer narrow scales ≤ 1 mm. (easier to see on mature fruit), inner bristles, 6.5 mm., white; Fruit, disk 3 mm., hairy.

- Lippincott Property, At edge of small creek; also collected here: Dianthus armeria, Prunella vulgaris, Potentilla recta, and Veronica anagallis-aquatica. Variety minor if infraspecific names are to be applied. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2113. 1 Jul 2019. ( Golden ) .

- North Table Mountain Park, Lower north slopes of North Table Mountain, between the Tablerock Trail and North Table Loop, 4.0 km north northeast of the GNIS location of Golden. Tom Schweich 1209. 13 Jul 2015. ( CS JCOS s.n. KHD00062155 OBI83171 ) Mixed grasses and forbs upslope of North Table Loop. Lower north slopes of North Table Mountain, 1.02 km. southwest of the Mesa Spur trailhead on 58th Avenue, 4.66 km. north northeast of the GNIS location of Golden. Tom Schweich 1521. 29 Jul 2016. ( EIU JCOS s.n. KHD00063461 OBI83315 ) .

- Ranson/Edwards Homestead Open Space Park, Thinly vegetated rocky alluvial terrace. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 60 m. west of Plainview Road. Tom Schweich 1221. 16 Jul 2015. ( JCOS s.n. KHD56974 UC UCR267453 ) High plains above Rocky Flats, 16.25 km north northwest of Golden, 1.8 miles north of CO State Highway 72 on Plainview Road, then 185 m. west southwest of Plainview Road. Tom Schweich 1293. 9 Sep 2015. ( JCOS s.n. KHD56975 UC UCR267488 ) High plains above Rocky Flats, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.6 mi. generally north on Plainview Road, then 10 m. northeast, 15.75 km. north northwest of the GNIS location of Golden. Tom Schweich 1942. 14 Jun 2018. ( COLO02347599 ) .

- South Table Mountain, Uniformly covering S. facing slope below mesa edge; very common. Front Range, S. Table Mountain, Golden. 13N 0484200E 4399300N. Loraine Yeatts 605. 27 Jun 1983. ( COLO00098665 KHD19408 ) . .

Hieracium albiflorum Hook.  White-Flower Hawkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, In ponderosa pine woodland, thick forest duff, with Juniperus communis and J. scopulorum, and Berberis repens. Most plants show some evidence of herbivory. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest corner near the railroad tracks, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2150. 13 Jul 2019. ( Golden ) . .

Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B.L. Turner.  Many-Headed Fine-Leaved Wooly-White. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm., ±tomentose throughout; Leaves, basal, petiole 35 mm. + blade 75-105 mm. × 30-50 mm. wide, oblanceolate in shape, base conspicuously tomentose, bipinnately dissected to filiform segments, ultimate leaf divisions (8)12-19 mm., cauline, similar, reduced above, #(4)5-8; Inflorescence, heads borne singly on peduncles, 22-45 mm.; Heads, (5)7-16 per stem; Involucre, 8 mm. × 15 mm. wide; Phyllaries, 1-2 series (vague what is a series and what not), 6-7 mm. × 2.5-4.0 mm. wide, inner > outer, green, tomentose, margins chartaceous, tips broad; Receptacle, epaleate, flat; Flowers, 1 kind; Disk flowers, corollas, 3.5 mm., yellow; Pappus, crown of scales, 0.8-1.2 mm.; Cypsela, 3-5 mm., hairy all over, more so on the angles. (Described from Coll. No. 1427, 15 June 2016, and Coll. No. 1504, 13 July 2016.)

- North Table Mountain Park, Lower slopes on the west side of North Table Mountain, along side of North Table Loop, just a few meters north of the access road to the trailhead, 3.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1504. 13 Jul 2016. ( EIU JCOS s.n. KHD00063468 OBI83338 ) .

- South Table Mountain, large patch of Chrysothamnus also present. Survey of Golden Gate Canyon State Park. Colorado native Plant society. South Table Mountain, at base of E. facing shallow gully near Quaker Rd. 13N 0483009E 4400494N. Loraine Yeatts 589. 27 Jun 1983. ( KHD19409 ) . .

Lactuca serriola L.  Prickly Lettuce. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual herb, Stems erect, Leaves basal 0 at flowering, cauline coarsely lobed, margins prickly-toothed, Fruit beak slender, many-ribbed, ~8 adaxial, ~5 abaxial (Described from Collection No. 911, 4 Oct 2012).

- North Table Mountain Park, Growing in cracks in the basalt of the upper flow, plentiful in rocks and in soil below. Introduced. South rim of North Table Mountain, in the Golden Cliffs Trail where it passes through the uppermost basalt flow, 260 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1548. 1 Sep 2016. ( CS EIU JCOS s.n. KHD00064004 ) .

- Ranson/Edwards Homestead Open Space Park, Dense colony of small plants in dried wetland, with Iris missouriensis and Epilobium sp.. High plains above Rocky Flats, 19.4 km. north northwest of the GNIS location of Golden, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. north on Plainview Road, then 150 m. west into open prairie. Tom Schweich 2200. 27 Aug 2019. ( Golden OBI ) .

- South Table Mountain, In gravel at edge of roadbed. South Table Mountain. 13N 0484200E 4399600N. Loraine Yeatts 774. 9 Aug 1983. ( COLO00100529 KHD19405 ) . .

Liatris punctata Hook.  Dotted Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 32 cm.; Leaves, cauline, alternate, 78 mm. × 3.5 mm. wide, gradually reduced above, linear, glandular punctate, margins, entire, revolute, sparsely hairy; Inflorescence, single heads in axils on short pedicels; Involucre, 16 mm. × 7 mm. wide, ±cylindrical; Phyllaries, in 2+ series, inbricate, 14 mm. × 3.8 mm. wide, glandular-punctate abaxially distally, margin, ciliate, scarious, tip acute; Receptacle, epaleate; Flowers, one kind; Disk flowers; Corolla, tube white 8 mm. + lobes purple 2.5 mm.; Pappus, bristles, one series, 10 mm., plumose; Cypsela, 7 mm., hairy. Described from Coll. No. 1264, 29 Jul 2015.

- Lippincott Property, Drier rocky knoll at edge of ponderosa pine woodland. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, north segment of parcel, south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2220. 29 Aug 2019. ( Golden OBI ) .

- North Table Mountain Park, Mixed grasses and forbs. Lower north slopes of North Table Mountain, along the Tablerock Trail, 1.0 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1536. 18 Aug 2016. ( COLO02348639 CS EIU JCOS s.n. KHD00063460 OBI83314 ) Grassy gentle slope, this plant is an early bloomer among its species here. Northwest corner of North Table Mountain, lower elevation lobe of the mesa, formed on top of the oldest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1736. 15 Aug 2017. ( JCOS s.n. KHD00065321 UCR ) .

- Ranson/Edwards Homestead Open Space Park, Koeleria macrantha, Hesperostipa comata, Andropogon gerardii, Muhlenbergia montana, Elymus canadensis, Heterotheca villosa, Artemisia frigida, Artemisia ludoviciana, Artemisia campestris, Psoralidum tenuiflorum, Opuntia phaecantha, Grindelia squarrosa United States, Colorado, Jefferson, Take Hwy 93 north 8 miles from Golden, CO; take Hwy 72 west for 3 miles to Plainview Rd; turn right(north); drive 100 yards and park. Plants are on east side of road in large open meadow of Jeffco Open Space. Denise Wilson 25 Nov 2012. ( CHIC17892 ) [ Coordinates are in Jefferson County Open Space, written location description is likely in Boulder Mountain Park and Open Space. ] High plains above Rocky Flats, 15.8 km north northeast of Golden, 1.4 miles north of CO State Highway 72 on Plainview Road, 150 m. northeast of Plainview Road. Tom Schweich 1264. 29 Jul 2015. ( JCOS s.n. KHD56976 UC ) .

- South Table Mountain, Widespread and common on lava pavement. South Table Mountain. 13N 0484200E 4399700N. Loraine Yeatts 824. 29 Aug 1983. ( COLO00102848 KHD19404 ) . .

Lygodesmia juncea (Pursh) D. Don ex Hooker.  Rush Skeletonplant. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, On steep clay slope. Jefferson County, Colorado, USA. S. Table Mt. On west side of Quaker road. UTM: 99308426. Loraine Yeatts 773. 7 Aug 1983. ( COLO00106021 ) . [ One of two collections numbered #773, the other being Stephanomeria pauciflora. ] .

Nothocalais cuspidata (Pursh) Greene.  Prairie False Dandelion. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Common, widely scattered. Tom Schweich, with Irene Weber 4/24/2019. .

- North Table Mountain Park, “Wavy-leaved dandelion,” open prairie on top of mesa, common. Beside North Table Loop, just south of intersection with Tilting Mesa Trail. Tom Schweich 1095. 30 Apr 2015. ( JCOS s.n. KHD56903 UC2045768 ) .

- South Table Mountain, S. facing slope; locally common in meadows; clay soil of volcanic origin. S. Table Mt. W. of Quaker rd. UTM: 842992 Loraine Yeatts 473. 9 May 1983. ( COLO 00110056 ) On flats. South Table Mountain; Flats west of Quaker Rd. above gate. 13N 0484300E 4399500N. Loraine Yeatts 575. 1 Jun 1983. ( KHD19401 ) . .

Packera fendleri (A. Gray) W.A. Weber & Á. Löve.  (Syn: Senecio fendleri A. Gray ) Fendler"s Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, North Table Mountain Mark Duff 83. 20 Jun 1992. ( COLO00114801 ) .

- South Table Mountain, On south-facing slope. Golden, South Table Mountain; south-facing slope above Golden Hills Road. 13N 0484200E 4399200N. Loraine Yeatts 491. 16 May 1983. ( KHD19482 ) Basalt flow in Denver Formation, common on s. facing slope. S. Table Mt., a lava capped mesa, near mesa top. UTM: 840997 Mary E. Edwards 415. 1 Jun 1983. ( COLO 00114918 ) . .

Packera plattensis (Nuttall) W. A. Weber & Á. Löve.  (Syn: Senecio plattensis (Packera) Nutt. ) Prairie Groundsel. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, 14 cm., from taprooted caudix, sap not milky; Stem, light green, tomentose, densely so in axils; Leaves, mostly basal and few cauline, alternate, petiole 8 mm., blade 10 mm. × 5 mm. wide, oblanceolate, surface, upper thinly tomentose, lower moderately tomentose, especially the mid-vein, margin, crenulate; Inflorescence, head enclosed by involucre, showy; Heads, #10, pedicels, 12 mm.; Involucre, 7 mm. × 5-6 mm. wide, thinly tomentose; Phyllaries, equal, in 1 series, 5 mm. × 0.7 mm. wide, green, flat; Receptacle, epaleate; Flowers, of 2 kinds; Ray flowers, #10, tube 3 mm. + blade 7 mm., yellow, fertile; Disc flowers, many, tube 4 mm. + lobes 0.5 mm., yellow; Pappus, many, well-developed, bristles, 4 mm., ±equal, Style, 2-branched; Fruit, 1 mm., green, beak-less, glabrous. (Described from Coll. No. 1817, 12 May 2018).

- Lippincott Property, South margin of a small meadow in saddle between hogback and flatiron, quite wet from runoff of the meadow. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.4 km. north northwest of the GNIS location of Golden. Tom Schweich 2064. 6 Jun 2019. ( Golden ) South-facing slope with grasses and forbs. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, narrows of the parcel between central and southeast portions, 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2085. 17 Jun 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Drier southeast-facing slope. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Roaf from CO Highway 93, 1 mi. generally north on Plainview Road, then 60 m. east into field. Tom Schweich 1914. 3 Jun 2018. ( JCOS s.n. KHD00068680 ) . .

Pericome caudata A. Gray.  Mountain Tail-Leaf. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, among boulders on the south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2212. 29 Aug 2019. ( Golden OBI ) . .

Picradeniopsis oppositifolia (Nutt.) Rydb. ex Britton.  (Syn: Bahia oppositifolia (Nutt.) A. Gray ) Opposite Leaf Bahia. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Level area which catches water. South Table Mountain; along old road on Jefferson County open space land. 13N 0486260E 4399900N. Mary E. Edwards 395. 1 Jul 1983. ( COLO00120311 KHD19705 ) . .

Pseudognaphalium canescens (DC.) Anderberg.  (Syn: P. canescens (DC.) W. A. Weber [illeg.] ) Wright's Rabbit-Tobacco.. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 25 cm.; Leaves, alternate, petiole 16 mm. + blade 30 mm. × 10 mm. wide, tomentose (slightly less so adaxially), sessile glandular beneath the tomentum; Inflorescence, terminal and axial on leafy stems; Phyllaries, 3 series, 3.7 mm. × 1 mm. wide, green center, mostly scarious, innermost glabrous; Receptacle, epaleate, flat; Flowers, 2 kinds (heads disciform); Rays, small, inconspicuous, sterile; Disk flowers, corolla, 2 mm., yellow; Pappus, capillary bristles, >corollas. (Described from Coll. No. 1549, 1 Sep 2016.)

- North Table Mountain Park, Growing in cracks in the basalt of the upper flow, very few seen. South rim of North Table Mountain, in the Golden Cliffs Trail where it passes through the uppermost basalt flow, 260 m. north of the Golden Cliffs trailhead, 1.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1549. 1 Sep 2016. ( KHD00064001 ) . .

Pseudognaphalium macounii (Greene) Kartesz.  Macoun’s Rabbit-Tobacco. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual (?) to 45 cm.; Leaves, cauline, alternate, 40 mm. × 4 mm. wide, decurrent, lance-linear, entire, stalked glandular, tomentose abaxially; Inflorescence, branched axial and terminal; Heads in tight clusters, disciform; Involucre, 4 mm.; Receptacle, epaleate; Phyllaries in 4+ series, hyaline; Pappus, bristles. Described from Coll. No. 1257, 26 Jul 2015.

- Lookout Mountain Nature Center, Open Ponderosa forest, growing in patches, loacally common. Few plants., Jefferson County Nature Center, open Ponderosa forest. 13N 0478695E 4397078N. Stanley Smookler 5. 26 Aug 1986. ( KHD27038 ) . [ Per FNANM, “Reports of Pseudognaphalium viscosum from the flora for states other than Texas are based on plants of P. macounii.” ]

- Ranson/Edwards Homestead Open Space Park, Gentle south-facing slope away from intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 260 m. west of Plainview Road. Tom Schweich 1257. 26 Jul 2015. ( JCOS s.n. KHD56977 UCR267470 ) . .

Ratibida columnifera (Nutt.) Woot. & Standl.  (Syn: Rudbeckia columnifera Nutt. ) Upright Prairie Coneflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm., tap-rooted; Leaves, cauline, to 11 cm. × 3 cm. wide, 1-pinnate, pinnae to 39 mm. × 4 mm. wide, some toothed; Inflorescence, single heads per stem, >> leaves; Involucre, 14 mm. diameter; Phyllaries, 1 series, lanceolate, hairy abaxially; Receptacle, cylindric, paleate; Rays, #5, 17 mm., × 13 mm. wide, elliptic-ovate, sterile, corolla yellow; Disk, cylindric, 20-45 mm. × 9-12 mm. wide; Palea, folded around but not enclosing disk flowers; Disk flowers, many, corolla greenish-yellow; Pappus, short crown of scales; Fruit, compressed, but maybe not strongly, ciliate adaxially(!). Described from Coll. No. 1198, 12 July 2015.

- North Table Mountain Park, Top of North Table Mountain, base of north-facing rocky slope (fault scarp?) above pond, 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1496. 13 Jul 2016. ( COLO2299725 CS EIU JCOS s.n. KHD00063466 ) .

- Ranson/Edwards Homestead Open Space Park, Hillside on highest prairie just below ponderosa pine woodland. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 300 m. northeast, almost to the boundary fence; 16.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1514. 24 Jul 2016. ( EIU JCOS s.n. KHD00063459 OBI83334 UC ) .

- South Table Mountain, On S. facing clay slope below mesa edge. S. Table Mt. W of Quaker rd. UTM: 842992. Loraine Yeatts 625. 3 Jul 1983. ( COLO00124297 ) South Table Mountain; east side of Quaker Road near Golden Hills road. 13N 0484200E 4398900N. Loraine Yeatts 679. 11 Jul 1983. ( BRY264320 KHD19397 ) . .

Scorzonera laciniata L.  (Syn: Podospermum laciniatum (L.) De Candolle ) Cutleaf Vipergrass. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., Leaves, basal and cauline, 7-20 cm., pinnately dissected into near-linear lobes, reduced but still well-developed above; Inflorescence, few heads on long stems; Phyllaries, in ±3 series, graduated, 4-13 mm. × 1.5-9 mm. wide, margins chartaceous, tips dark; Receptacle, epaleate; Flowers, ligulate (1 kind, 5-lobed), corolla yellow; Pappus of plumose bristles, Introduced, Europe (Old French: viper) (Described from Coll. No. 1399, 8 June 2016).

- Lippincott Property, Trampled by vehicles and eaten by cows. Also collected in this junction: Capsella bursa-pastoris, Collinsia parviflora, and Draba nemorosa, with Taraxacum officinale nearby. Northernmost Jefferson County, jointly owned by City of Boulder OSMP and Jefferson County Open Space, approximate centroid of parcel, in the junction of the ranch road and quarry road, 22.0 km. north northwest of the GNIS location of Golden. Tom Schweich 2164. 21 Jul 2019. ( Golden OBI ) .

- South Table Mountain, South Table Mountain; west side of Quaker Road on east facing roadcut. 13N 0484300E 4398200N. Loraine Yeatts 509. 5/24/1983. ( BRY0115671 COLO00121087 KHD19396 ) Mesatop meadow, abundant and widespread. S Table Mt, near Quaker Rd gate. Mary E. Edwards 1 Jun 1984. ( CS81499 ) . .

Senecio eremophilus Richardson var. kingii (Rydb.) Greenm.  CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, North Table Mountain. Mark Duff 179. 20 Jun 1992. ( COLO00128652 ) . .

Senecio integerrimus Nutt.  Columbia Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon. Probably var. exaltatus (Nutt.) Cronquist if infraspecific names are to be applied.

- Lippincott Property, Deep forest litter in cracks of ridge bedrock. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, near the northern edge of the property and the Boulder County boundary, east side of ridge, 25.6 km. north northwest of the GNIS location of Golden. Tom Schweich 2029. 26 May 2019. ( Golden ) Ponderosa pine woodland where the highest Great Plains meets the Rocky Mountain Front Range, parcel disturbed by cattle grazing and clay mining. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2059. 6 Jun 2019. ( Golden ) .

- North Table Mountain Park, Numerous plants among short grasses and forbs. Variety exaltatus (Nutt.) Cronquist if infraspecific names are to be applied. Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1811. 10 May 2018. ( JCOS s.n. KHD00068673 ) .

- Ranson/Edwards Homestead Open Space Park, Moderate north slope, deep grass with Astragalus agrestis. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 300 m. northeast to the general vicinity of the old homestead, about 15.8 km. north of the GNIS location of Golden. Tom Schweich 1831. 17 May 2018. ( COLO02347607 JCOS s.n. KHD00068674 UCR ) .

- South Table Mountain, On east-facing hill. South Table Mountain; on east slope of hill 6020, northwest of junction of Quaker & Golden Hills Roads. 13N 0484200E 4398900N. Loraine Yeatts 510. 24 May 1983. ( KHD19481 ) A lava capped mesa, basalt flow in Denver formation. Damp area on gentle slope S. of pond; occasional with Symphorcarpos and Rosa sp. S. Table Mt. UTM: 835997. Mary E. Edwards 418. 1 Jun 1983. ( COLO 00129890 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Senecio spartioides Torr. & A. Gray.  (Syn: Senecio multicapitatus Greenm. ex Rydb. ) Broomlike Ragwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm.; Leaves, basal, unknown, cauline, alternate, 90 mm. × 3 mm. wide, narrowly oblanceolate, reduced above to 30 mm. × 1 mm. wide, variously hairy in axils and ±lower surface; Involucre, 12.5 mm. × 6 mm., narrowly campanulate, bractlets not prominent; Phyllaries, 2 series? or 1 series with 2 forms? outer, 7.5 mm. × 0.7 mm. wide, all green, inner, 7.5 mm. × 1.3 mm. wide, centrally green with margins chartaceous, all tips dark; Receptacle, epaleate; Rays, fertile, corolla, tube 5 mm. + blade 9 mm. × 2 mm. wide, yellow, lobes 3; Disk flowers, corolla, 6 mm., yellow; Pappus, 1 series of fine capillary bristles, 5 mm.; Cypsela, 4 mm., 5-angled, dark gray, “hirtellous” throughout (not just the angles). Described from Coll. No. 1298, 23 Sep 2015.

- Lippincott Property, Also collected here: Grindelia squarrosa, Heterotheca foliosa, Pericome caudata, Nepeta cataria, and Urtica dioica. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, among boulders on the south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2216. 29 Aug 2019. ( Golden ) .

- North Table Mountain Park, Mixed grasses, forbs and small shrubs. lower north slopes of North Table Mountain, 0.73 km. south southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1538. 18 Aug 2016. ( JCOS s.n. KHD00063457 ) Growing next to Coll. No. 1319, Ribes aureum, 4 May 2016. Middle elevation south slopes of North Table Mountain, along Golden Cliffs trail, 84 m. northeast of the Golden Cliffs trailhead, 1.4 km. northeast of the GNIS location of Golden. Tom Schweich 1545. 1 Sep 2016. ( CS EIU JCOS s.n. KHD00063967 OBI83344 ) .

- Ranson/Edwards Homestead Open Space Park, Not often seen at Ranson/Edwards; these growing among grasses and fallen, burned ponderosa pines. Northwest corner of the Ranson/Edwards parcel, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 2.3 mi. north on Plainview Road, then 40 m. west, 16.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1564. 8 Sep 2016. ( COLO02348431 JCOS s.n. KHD00063994 UC ) High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.1 mi. north on Plainview Road, then 925 m. west on a small ridge, 19.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2209. 27 Aug 2019. ( Golden OBI ) .

- South Table Mountain, South-facing slope below mesa edge. South Table Mountain; below mesa edge, west of Quaker Road. 13N 0484200E 4399200N. Loraine Yeatts 833. 9 Sep 1983. ( KHD19480 ) . .

Solidago canadensis L.  Canada Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, In ditch, roadside. South Table Mountain, along Quaker Road. 13N 0484300E 4399100N. Loraine Yeatts 818. 29 Aug 1983. ( KHD19478 ) . .

Solidago gigantea Aiton.  Giant Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, In deep grassland with few ponderosa pines, also collected nearby: Antennaria rosea, Townsendia hookeri, Noccaea fendleri, and Frasera speciosa, High plains above Rocky Flats, northwest corner of Ranson/Edwards, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 2.1 mi generally north on Plainview Road, then 200 m. west. Tom Schweich 2227. 10 Sep 2019. ( Golden ) . .

Solidago missouriensis Nutt.  Missouri Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 35-40 cm., generally glabrous throughout; Leaves, basal, unknown, cauline, alternate, petiole 10-45 cm. + blade 100 mm. × 21-22 mm. wide, reduced above, oblanceolate, margin, sparsely scabrous proximally, serrate distally, glabrous, prominently 3(5)-nerved; Inflorescence, crowded panicle; Pedicels, 1 mm.; Bracts, #2, 1.8 mm.; Involucre, 3.0-4.5 mm. × 3-5 mm. wide, obconic; Phyllaries, 2+ series, 2.2-3.5 mm. × 1 mm. wide, graduated, green, margin chartaceous, veins 1; Receptacle, epaleate, conic; Flowers, 2 kinds; Rays, #12, fertile, tube 2 mm. + blade 2.2 mm., yellow; Disk flower, #12, tube 2.8 mm. + lobes 0.7 mm. = 3.5 mm., yellow; Pappus, capillary bristles, 3.0 mm.; Cypsela, 0.4-0.6 mm., glabrous-sparsely hairy. Described from Coll. No. 1255, 26 Jul 2015, and Coll. No. 1519, 29 Jul 2016. Distinguished in part by its glabrous characters and presence of 3 prominent nerves on leaves. Jepson eFlora notes that S. missouriensis Nutt. Is misapplied to S. spectabilis (D. C. Eaton) A. Gray. FNANM states that, in the west, it can similar to smaller plants of S. spectabilis (13 Sep 2014).

- Mount Falcon Park, USA, Colorado, Jefferson County, Jefferson Co. Mount Falcon Park Robert Merrill King and Robert M. Garvey 10965. 7 Jul 1999. ( CS83594 ) .

- North Table Mountain Park, Trailside in small outcrop of rocks. Lower east slopes of North Table Mountain, along the North Table Loop north of the Mesa Top Trail, 1.2 km. northwest of the Easley Road trailhead; 4.32 km. northeast of the GNIS location of Golden. Tom Schweich 1519. 29 Jul 2016. ( COLO02347953 EIU JCOS s.n. KHD00063458 OBI83316 ) With Bromus inermis, Andropogon gerardii, Liatris punctata in bud, Linum lewisii in seed. Westernmost slope of North Table Mountain, near North Table Loop, just north of parking lot and trailhead, 3.2 km. north of the GNIS location of Golden. Tom Schweich 1732. 15 Aug 2017. ( Golden JCOS s.n. KHD00065323 ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 212 m. west of Plainview Road. Tom Schweich 1255. 26 Jul 2015. ( JCOS s.n. KHD56978 ) Same as Coll. No. 1255, but of shorter stature, perhaps because of distance from intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 240 m. west of Plainview Road. Tom Schweich 1256. 26 Jul 2015. ( CAS UC UCR267468 ) .

- South Table Mountain, Roadside. South Table Mountain, both sides of Quaker Road. 13N 0484249E 4399100N. Loraine Yeatts 772. 7 Aug 1983. ( KHD19479 ) . .

Solidago nana Nutt.  Baby Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., short white hairy throughout; Leaves, basal, withered (late in season), cauline, alternate, 95 mm. × 9-10 mm. wide (includes 15 mm. winged petiole? below) veins, 1 (others discontinuous), margin hairs similar to surface hairs, i.e., not ciliate, gradually reduced and sessile above; Inflorescence, heads numerous and small, involucre, 5.5 mm.; Phyllaries, 3-4 series, imbricate, graduated, 3-4 mm., veins 1; Receptacle, epaleate, (scales? to 0.5 mm.); Flowers of 2 kinds; Rays, few (3-4), fertile? (stigma visible but cypsela not as developed as those of disk flowers), corolla, 6 mm., yellow; Disk flowers, few (6-8), corolla, 4 mm., yellow; Pappus, capillary bristles; Cypsela, 1.5 mm., short hairy. Described from Coll. No. 1292, 9 Sep 2015.

- Ranson/Edwards Homestead Open Space Park, Few plants, or maybe one plant, few flowering stems, northwest side of ponderosa pine. High plains above Rocky Flats, 16.25 km north northwest of Golden, 1.8 miles north of CO State Highway 72 on Plainview Road, then 175 m. west southwest of Plainview Road. Tom Schweich 1292. 9 Sep 2015. ( JCOS s.n. KHD56981 ) Also observed/collected nearby: Toxicodendron rydbergii and Artemisia campestris. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.1 mi. north on Plainview Road, then 480 m. on a small ridge, 19.4 km. north northwest of the GNIS location of Golden. Tom Schweich 2205. 27 Aug 2019. ( Golden OBI ) .

- South Table Mountain, Seeds of success; SCD #0276197 U.S.A., Colorado, Jefferson, South Table Mountain; take 32nd Avenue W, left on Eldridge, drive ca 1.2 km, then turn right on Foothills Road; follow to end of Foothill Circle at park entrance. Verbatim Coordinates: 39° 45' 4.8" N, 105° 9' 45.6" W. J. Shade 932114. 14 Oct 2005. ( RM841273 ) [ Eco-region 20: grassy foothills, with Bouteloua gracilis, Hesperostipa comata, Bromus tectorum, Artemisia frigida, Artemisia ludoviciana, Paronychia jamesii, Heterotheca villosa, Gutierrezia sarothrae, Alyssum sp., Penstemon watsonii, and Cercocarpus etc. ] At head of northeast-facing gully; gentle slope; lava capped mesa in Denver Formation. South Table Mountain; overlooking Rolling Hills Country Club. 13N 0484100E 4400300N. Loraine Yeatts 1083. 18 Sep 1984. ( KHD20502 ) . .

Solidago rigida L. var. humilis Porter.  Stiff Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

Herbaceous perennial, to 70 cm., apparently reproducing in part by offsets (“caudices branching”), short spreading hairy throughout; Leaves, basal and cauline, basal, #3-8, petiole, 15 cm., blade, 12.5 cm. × 6 cm. wide, ovate, entire, withered at flowering, cauline, alternate, sessile, 60 mm. × 27 mm. wide, ovate, entire, reduced above; Inflorescence, cymose, heads borne singly on short pedicels; Phyllaries, 2+ series, graduated, largest, 4.5 mm. × 1.3 mm. wide, tip obtuse, veins 3, ciliate distally; Receptacle, convex, epaleate; Flowers of 2 kinds; Rays, fertile, corolla, 5.5 mm. × 0.8 mm. wide, yellow; Disk flowers, corolla, 5 mm., yellow; Pappus, bristles, 1 series; Cypsela, 1 mm., glabrous. Described from Coll. No. 1280, 28 August 2015.

- Ranson/Edwards Homestead Open Space Park, Small terrace near an intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 435 m. west of Plainview Road. Tom Schweich 1280. 28 Aug 2015. ( CAS JCOS s.n. KHD56982 UC UCR267479 ) Wet, almost swampy, area on the south side of an intermittent stream. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road, from CO Highway 93, 1.2 mi. north on Plainview Road, then 400 m. east of Plainview road, 15.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1556. 3 Sep 2016. ( CS OBI83373 ) High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 270 meters southwest on the slope above the road. Tom Schweich 1769. 1 Sep 2017. ( COLO02348118 Golden ) Low, wet area. Also collected here: Helianthus pauciflorus ssp. subrhomboideus, nearby: Lactuca serriola, Sonchus asper, and Sporobolus heterolepis. High plains above Rocky Flats, 19.4 km. north northwest of the GNIS location of Golden, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. north on Plainview Road, then 130 m. west into open prairie. Tom Schweich 2198. 27 Aug 2019. ( Golden OBI ) . .

Solidago speciosa Nutt. var. pallida Porter.  Pale Showy Goldenrod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, 50-55 cm., new rosette growing from caudex while flowering from adjacent stem; Stem, glabrous, reddish; Leaves, new rosette of basal leaves, petiole 38-55 mm., blade 80 mm. × 25 mm. wide, pinnately veined, glabrous, margin minutely ciliate, basal leaves of flowering stem, withered, cauline leaves, reduced, not clasping, short petioled 18-0 mm. distally, glabrate, turning reddish, margin ciliate; Inflorescence, panicle-like (only 1° and 2° branches), minutely glandular among heads; Heads, many, 6 mm. × 2.3 mm. wide; Peduncles, 2 mm.; Involucre, 3.5 mm. × 2.5 mm. wide; Phyllaries, 3+ graduated series, 1.7-3.0 mm. × 0.7 mm. wide, vein, 1, tip, obtuse, ciliate; Receptacle, epaleate; Flowers, 2 kinds; Rays, few (#2), tube 2 mm. + blade 2 mm., yellow, fertile; Disc flowers, #10-12, tube 3 mm. + lobes 1 mm., yellow; Pappus, bristles, 3 mm.; Cypsela, 1 mm., glabrous (sparse small hairs). Described from Coll. No. 1768, 1 Sep 2017.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 260 meters southwest on the slope above the road. Tom Schweich 1768. 1 Sep 2017. ( JCOS s.n. KHD00065170 ) . .

Sonchus asper (L.) Hill.  Spiny Sowthistle. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 19.4 km. north northwest of the GNIS location of Golden, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. north on Plainview Road, then 150 m. west into open prairie. Tom Schweich 2201. 27 Aug 2019. ( Golden ) . .

Stephanomeria pauciflora (Torr.) A. Nelson.  Brownplume Wirelettuce. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, shrub-like, to 30 cm.; Leaves, alternate, sessile, 80 mm. × 15 mm. wide, lanceolate, deeply toothed (runcinate); Heads, many; Phyllaries, 3 graduated series, 4-9 mm. × 1.3-1.5 mm. wide; Flowers, 1 kind; Rays, #5, 12 mm. × 2.5 mm. wide, white, fading tan; Pappus, bristles, connate into 5 groups corresponding to ribs of cypsela, 7 mm., plumose upper 3/4; Cypsela, 4 mm., beak, 0, rugose-tuberculate, 5 broad ribs. (Described from Coll. No. 1518, 29 July 2016).

- North Table Mountain Park, Grassy southeast-facing slope. Lower east slopes of North Table Mountain, between North Table Loop and Mesa Top Trail, 0.7 km. northwest of the Easley Road trailhead; 3.9 km. northeast of the GNIS location of Golden. Tom Schweich 1518. 29 Jul 2016. ( COLO02347961 KHD00065717 OBI176126 ) .

- South Table Mountain, On steep, clay slope. South Table Mountain; west side of Quaker Road. 13N 0484260E 4399300N. Loraine Yeatts 773. 7 Aug 1983. ( KHD19403 ) . .

Symphyotrichum ericoides (Linnaeus) G. L. Nesom.  (Syn: Virgulus ericoides (Linnaeus) Reveal & Keener ) White Heath Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, woody at base, stems ascending, to 40 cm., spreading vegetatively, short hairy and minutely glandular throughout; Leaves, alternate, sessile, narrowly lanceolate or oblong, 7-9 mm. × 1.5 mm. wide, entire, strigose, tip, small white spine; Heads, borne singly along stem, occasionally 2 per stem, on leafy pedicels; Flowers, of 2 kinds; Involucre, 4 mm. × 5 mm. wide, bell-shaped; Phyllaries, 2+ series, 3-4 mm. × 0.7-0.8 mm. wide, white below with 1 brown or green vein, rhomboid green above, tip with very small spine; Receptacle, epaleate; Rays, corolla, white, tube 2 mm + ligule 5.0-6.5 mm., fertile; Disc flowers, corolla, yellow, tube 3.5 mm. + lobes 0.5 mm., (some?) lobes reddish; Pappus, bristles, fine, barbelate, 4 mm.; Cypsela, 1 mm. (Described from Coll. No. 1558, 3 September 2016 and Coll. No. 1743.5, 23 August 2017).

- Ranson/Edwards Homestead Open Space Park, 1.1 miles north on Plainview Road from CO State Highway 72, then 400 m. east, to a damp area where an old ranch road first crosses an ephemeral stream. Tom Schweich 1558. 3 Sep 2016. ( JCOS s.n. KHD00063996 OBI83372 ) High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 210 meters southwest on the slope above the road and near a small group of Ponderosa pines. Tom Schweich 1771. 1 Sep 2017. ( JCOS s.n. KHD00065402 ) . .

Symphyotrichum falcatum (Lindl.) G.L. Nesom.  (Syn: Aster falcatus Lindl. ) White Prairie Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., scabrous throughout; Leaves, basal, unknown, cauline, alternate, sessile, 32 mm. × 2.7 mm. wide, linear-oblanceolate, entire, tip spinulose, gradually reduced above; Inflorescence, extended panicle; Involucre, 5 mm. × 4.5 mm. wide; Phyllaries, in 4 graduated series, 3-5 mm. × 0.8 mm. wide, chartaceous below, green above, elliptical, tip spinulose except innermost; Receptacle, epaleate; Flowers of 2 kinds, Rays, pistillate, corolla, tube 2.5 mm. + laminae 5 mm. × 1.3 mm, white spatulate; Disk flowers, corolla, 4 mm., some rose to purple, some yellow; Pappus, capillary bristles, 4.5 mm.; Cypsela, 1 mm., hairy. Described from Coll. No. 1300, 23 Sep 2015.

- South Table Mountain, Forming patches on S. facing slope below mesa edge. S. Table Mt. Near road up 1st gully to W. of Quaker road. UTM: 841992 Loraine Yeatts 834. 9 Sep 1983. ( BRY0220398 COLO00149393 KHD19327 ) . .

Symphyotrichum laeve (L.) Á. Löve & D. Löve.  Smooth Blue Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 70 cm., rhizomatous or rooting at nodes; Leaves, alternate, cauline, linear, 120 mm. × 8 mm. wide, reduced and more lanceolate above, glabrous, margin very shallowly toothed and lightly ciliate, entire above; Inflorescence, panicle with 1° and 2° branches; Heads borne singly on 10-15 mm. pedicels, 8 mm. × 10 mm. wide; Phyllaries in 3+ graduated series, 3-10 mm. margins white to tips diamond-shaped green, all tips acute, few hairs; Receptacle epaleate; Flowers of 2 kinds; Ray flowers, fertile, tube green 3.5 mm. + blade blue 9.5 mm. × 1.5 mm, spatulate-oblanceolate; Disk flowers, outer reddish-purple, inner yellow, corolla, 6.5 mm.; Pappus, bristles, 5 mm.; Cypsela, 3 mm × 1.2 mm. wide, glabrous, veins, 4, prominent. Described from Coll. No. 1278, 20 August 2015. Only var. geyeri is recognized in Colorado per Weber & Wittmann (2012) and Ackerfield (2015). However, the green apical zones of these phyllaries are more diamond-shaped than lanceolate suggesting var. laeve, especially if the phyllaries are described as strongly unequal. The possibility that these plants should be assigned to var. laeve or that var. geyeri should be considered a synonym of var. laeve is discussed in FNANM.

- Lippincott Property, Highest prairie at edge of ponderosa pine woodland. Heavily grazed by cattle. Also collected here: Hypericum perforatum, a Colorado Noxious Weed List C plant. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, north segment of parcel, south side of Bull Gulch, 22.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2222. 29 Aug 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Northeast slope, with Gentiana, Monardella, and a mat-forming Asteraceae. Ambiguous as to variety name, as also noted on Coll. No. 1278. High plains above Rocky Flats, 16.25 km north northwest of Golden, 1.8 miles north of CO State Highway 72 on Plainview Road, then 175 m. west of Plainview Road. Tom Schweich 1291. 9 Sep 2015. ( CAS JCOS s.n. KHD56984 OBI83235 UC UCR267487 ) High plains above Rocky Flats, 16.7 km north northeast of Golden, 2.4 miles north of CO State Highway 72 on Plainview Road, then 250 m. northwest of Plainview Road on a social trail. Tom Schweich, with Sofia Albaladejo 1278. 20 Aug 2015. ( CAS JCOS s.n. KHD00062149 UC UCR267476 ) . .

Symphyotrichum lanceolatum (Willd.) G. L. Nesom ssp. hesperium (A. Gray) G. L. Nesom.  (Syn: Aster lanceolatus Willd. ssp. hesperius (A. Gray) Semple & J. Chmielewski ) Western Lance-Leaved Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Large patch at head of 1st drainage W. of Quaker road in swampy seeping area with sedge. South Table Mountain. Head of 1st drainage W. of Quaker road. UTM: 83979938 Loraine Yeatts 831. 9 Sep 1983. ( BRY0221058 COLO00048272 KHD00005321 KHD00005325 ) . .

Symphyotrichum porteri (A. Gray) G.L. Nesom.  (Syn: Aster porteri A. Gray ) Smooth White Aster. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 35 cm., eglandular, generally not hairy; Stem ascending; Leaves, cauline, alternate, sessile, 53 mm. × 3 mm. wide, lance-linear, many rolled, tip pointed, maybe spinulose, generally glabrous except some distal margins; Inflorescence, crowded, ±flat-topped; Heads borne simgly on short pedicels; Involucre, 5 mm. × 8 mm. wide; Phyllaries, 2+series, 3.5 mm. × 0.7 mm. wide, ±equal, inner ≥ outer, mid-vein green, margins white proximally, green distally, tip acute; Receptacle, epaleate, convex (if not conic); Flowers of two kinds; Rays, fertile, corolla, 6.5 mm., white; Disk flowers, corolla, 3.0 mm., yellow; Pappus, bristles, barbed, single, 2.5 mm.; Cypsela, 0.7 mm., sparsely hairy. Described from Coll. No. 1266, 29 Jul 2015.

- Lippincott Property, Also collected here: Grindelia squarrosa, Heterotheca foliosa, Pericome caudata, Senecio spartioides, and Nepeta cataria. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, among boulders on the south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2219. 29 Aug 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.8 km north northeast of Golden, 1.4 miles north of CO State Highway 72 on Plainview Road, 163 m. northeast of Plainview Road. Tom Schweich 1266. 29 Jul 2015. ( JCOS s.n. KHD00062150 UC ) Sparse ponderosa pine forest. High plains above Rocky Flats, 16.7 km north northeast of Golden, 2.4 miles north of CO State Highway 72 on Plainview Road, then 250 m. northwest of Plainview Road on a social trail. Tom Schweich 1279. 20 Aug 2015. ( CAS JCOS s.n. KHD00062152 OBI83213 UCR267477 ) Shade of ponderosa pine. High plains above Rocky Flats, 16.25 km north northwest of Golden, 1.8 miles north of CO State Highway 72 on Plainview Road, then 125 m. west of Plainview Road. Tom Schweich 1290. 9 Sep 2015. ( CAS JCOS s.n. KHD00062154 OBI83233 ) Growing with Coll. No. 1771, Symphyotrichum ericoides. High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 210 meters southwest on the slope above the road and near a small group of Ponderosa pines. Tom Schweich 1770. 1 Sep 2017. ( Golden ) .

- South Table Mountain, Extremely large patch on disturbed flat area of mesatop, widespread. South Table Mountain. 13N 0484135E 4399630N. Loraine Yeatts 821. 29 Aug 1983. ( BRY0221967 COLO 00048645 KHD19328 ) . .

Taraxacum officinale F. H. Wigg.  (Syn: T. laevigatum (Willd.) DC. ) Common Dandelion. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Gentle slope at edge of ponderosa pine forest. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, approximate center of property. 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2015. 18 Apr 2019. ( Golden ) .

- Mount Falcon Park, 1100 10th Street, Golden, CO. 13N 0480637E 4400468N. Jim Ratzloff 24. 22 Apr 1976. ( KHD17721 ) .

- Ranson/Edwards Homestead Open Space Park, One of the earliest flowers in bloom, collected with Viola nuttallii. Stevens parcel immediately south of the Ranson/Edwards parcel, 115 m north of the Plainview Road bridge over Coal Creek, 14.5 km north northwest of the GNIS location of Golden. Tom Schweich 1314. 14 Apr 2016. ( JCOS s.n. KHD00063970 ) .

- South Table Mountain, Flat meadow on mesa top. Occasional but widespread. South Table Mountain. 13N 0484200E 4399500N. Loraine Yeatts 467. 2 May 1983. ( COLO 00139907 KHD19459 ) . .

Thelesperma megapotamicum (Spreng.) Kuntze.  Hopi Tea Greenthread. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 55 cm., woody at base, glabrous, eglandular; Leaves, opposite, pinnately lobed, lobes filiform, 30-35 mm.; Inflorescence, 1-3 heads per stem on 10 cm. peduncles; Phyllaries, 2 dimorphic series, without bristles or spines, outer, 2 mm. × 1.3 mm. wide, spreading, inner, 8 mm. × 3 mm. wide, connate 4.7 mm, tips erect; Receptacle, paleate, flat; Paleae, 7 mm. × 2 mm. wide, mid-vein greenish-brown, otherwise chartaceous; Flowers of 1 kind; Disc flowers, corolla, tube 3 mm. + throat 1 mm. + lobes 2 mm., color yellow with red-brown veins; Pappus, 2 retrorsely barbed awns; Cypsela, 3.8 mm. (Described from Coll. No. 1483, 6 Jul 2016.)

- North Table Mountain Park, Mixed grasses and forbs on the nose of a small ridge. Northwest slope of North Table Mountain, near the intersection of the North Table Loop and the Mesa Top Trail, 3.7 km. north of the GNIS location of Golden. Tom Schweich 1503. 13 Jul 2016. ( CS JCOS s.n. KHD00063467 OBI83339 UCR074171 ) Near top of small mound, also collected here: Opuntia macrorhiza and Rhus trilobata. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.06 km. north northeast of the GNIS location of Golden. Tom Schweich 2140. 11 Jul 2019. ( Golden OBI ) .

- South Table Mountain, Near lava rock bed. South Table Mountain; on mesatop. 13N 0484000E 4399700N. Loraine Yeatts 382. 11 Jul 1983. ( KHD19458 ) . .

Townsendia grandiflora Nutt.  Largeflower Townsend Daisy. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 15 cm.; Stem, villous; Leaves, opposite below, alternate above, 32-43 mm. × 3 mm. wide, narrowly oblanceolate, long ciliate at base; Inflorescence, heads borne singly; Involucre, 12 mm. × 25 mm. wide; Phyllaries, 5+ imbricate series, 13 mm. × 2.5-3.0 mm. wide, ±equal, ovate, margin ciliate, tip acuminate, green around prominent mid-vein, chartaceous margins; Receptacle, flat, epaleate, very short bristles; Flowers of two kinds; Rays, sterile, pappus, scales, 0.6 mm., corolla, 14-21 mm. × 1.2-1.5 mm. wide, white with purple center; Disk, 14-21 mm. wide, pappus, bristles, 4.0 mm., corolla, 4.5-5.0 mm., yellow; cypsela, 4 mm. × 1.3 mm., laterally compressed (Described from Coll. No. 1247, 24 Jul 2015, and Coll. No. 1404, 8 June 2016).

- North Table Mountain Park, On top of the flat surface of a spoils pile from the basalt quarry to the west. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1404. 8 Jun 2016. ( JCOS s.n. KHD00063984 ) Gentle east-facing slope, east of quarry. Top of North Table Mountain, near the southwest edge of the mesa, 1.99 km. north of the GNIS location of Golden. Tom Schweich 1927. 8 Jun 2018. ( COLO02347581 Golden KHD OBI137665 ) .

- South Valley Park, Stiff sandstone derived soil below cliffs, nearly bare of vegetation. Tom Schweich 2292. 20 May 2020. ( Golden ) .

- South Table Mountain, On flat lava bedrock area near mesa edge. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 593. 27 Jun 1983. ( KHD19457 ) Basalt flow in Denver Formation. S. Table Mt., a lava capped mesa; on E. facing slope of Jeffco Open Space land. UTM: 863994 Mary E. Edwards 500. 17 Jul 1983. ( COLO00144881 ) .

- Windy Saddle Park, Several plants between two Cercocarpus montana. Southeast Windy Saddle Park, rocky ridge on the lower slopes of Lookout Mountain, 2.21 km south southeast of the GNIS location of Golden. Tom Schweich 1247. 24 Jul 2015. ( KHD00062157 ) . .

Townsendia hookeri Beaman.  Hooker's Townsend Daisy. CalPhotos. Jepson eFlora. SEINet Taxon.

Low growing perennial, from a woody caudex, acaulescent, to 2.5 cm.; Leaves, linear to narrowly oblanceolate, 30 mm. × 1.2 mm. wide, appressed hairy or strigose, eglandular; Peduncle, 3 mm., spreading hairy, eglandular; Heads, solitary, sessile (or apparently so), 12 mm. × disc (10)15-20 mm. wide; Phyllaries in 3+ overlapping series, 8 mm. × 1.2 mm. wide, all same length but inner phyllaries attached higher on receptacle giving impression of inner > outer, green, margin scarious and ciliate, outer hairy, tipped by a tuft of tangled cilia, inner, margins and tip ciliate, but not tangled; Receptacle epaleate, flat; Ray flowers, #25-30, fertile (pistillate), cypsela 3.3 mm., tuft of glandular hairs at base, pappus of 1 series white bristles, 4-5 mm., corolla, 10-11 mm., white to lavender; Disc flowers, bisexual, cypsela, 3.7 mm., glandular hairy, pappus 1 series white bristles, 4-6 mm., corolla, 3.8-4.5 mm., yellow, lobes dark. (Described from Coll. No. 1087, 25 Apr 2015, and Coll. No. 1304, 9 April 2016) The disc pappus sometimes being longer than the ray pappus could lead one to T. incana in Ackerfield (2015). Perhaps caulescence would be a better character, as used by Weber & Wittmann (2012).

- Ranson/Edwards Homestead Open Space Park, Rocky alluvial terrace. Stevens parcel immediately south of the Ranson/Edwards parcel, 360 m northwest of the Plainview Road bridge over Coal Creek, 14.5 km north northwest of the GNIS location of Golden. Tom Schweich 1315. 14 Apr 2016. ( COLO02348449 CS JCOS s.n. OBI83162 ) In the shade of a mature ponderosa pine, gentle slope, rocky alluvial soil, 460 meters northeast of the GNIS location of Plainview, 2.2 miles generally north on Plainview Road from Colorado State Highway 72, then 70 m west. Tom Schweich, with Matt Schweich 1087. 25 Apr 2015. ( JCOS s.n. KHD56956 UC2045770 ) .

- South Table Mountain, Open, sparsely vegetated area of meadow on hill; in loose rocky soil with Linum lewisii, Eriogonum umbellatum and short grasses; populated area 100x150 yards with 8 plants/square meter at densest. Front Range, South Table Mountain (a lava capped mesa in the Denver formation). 1/8 mile west of Quaker road. 13N 0484293E 4399631N. Loraine Yeatts 2104. 17 Mar 1989. ( COLO00145029 KHD26914 ) Infrequent on clay loam, level site. Mesa ½ mi. south of Golden. Margaret M. Douglass 542. 8 Apr 1954. ( COLO00145060 ) . .

Tragopogon dubius Scop.  (Syn: Tragopogon dubius Scop. ssp. major (Jacq.) Vollman ) Yellow Salsify. CalPhotos. Jepson eFlora. SEINet Taxon.

Peduncle inflated distally, flowers yellow, phyllaries in 1 overlapping series, ligules 3-5 mm. shorter than phyllaries.

- North Table Mountain Park, Scattered widely along trail and grassy slopes above and below. On a social trail from the intersection of Easley Road and CO Highway 58, west and upslope to North Table Loop, 1.9 km. northeast of the GNIS location of Golden. Tom Schweich 1339. 12 May 2016. ( CAS JCOS s.n. KHD00063978 UC ) .

- Ranson/Edwards Homestead Open Space Park, Dry upper banks on south side of creek. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 65 m. east of Plainview Road. Tom Schweich 1115. 28 May 2015. ( JCOS s.n. KHD56968 UCR266088 ) .

- South Table Mountain, South table mountain. 13N 0484293E 4399631N. Loraine Yeatts 534. 1 Jun 1983. ( KHD19455 ) S. Table Mt. Common along Quaker Rd. just past Golden Hills Rd. UTM: 842988 Loraine Yeatts 577. 16 Jun 1983. ( COLO00146050 ) . .

Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray.  (Syn: Ximenesia encelioides Cav. ) Golden Crownbeard. Cowpen Daisy.. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual/perennial not observed, but described as annual; Stem, densely strigose; Leaves, cauline, alternate, petiole 48 mm. + blade 80 mm. × 40 mm. wide, reduced above, lanceolate, margin coarsely toothed, adaxial sparsely strigose, abaxial densely strigose; Heads, 7 mm. × 13 mm. wide, borne singly, on peduncles 6-43 mm.; Phyllaries, 1 series, 7 mm. × 1.5 mm. wide, strigose abaxially; Receptacle, conical, paleate; Flowers, 2 kinds, Rays, #12, tube 2 mm. + laminae 15 mm. × 4.5 mm. wide, yellow, sterile; Disk flowers, corolla, 3.5 mm., yellow; Pappus, [2 awns,] 1 mm.; Cypsela, 3.5 mm., strigose. (Described from Coll. No. 1539, 18 August 2016.)

- North Table Mountain Park, On edge of private horse pasture. Lower north slopes of North Table Mountain at the fenceline of the Williams parcel, 0.88 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1539. 18 Aug 2016. ( JCOS s.n. KHD00064003 ) .

- South Table Mountain, South Table mountain, East side of Quaker road in gravel. 13N 0484293E 4399631N. Loraine Yeatts 854. 19 Sep 1983. ( KHD19456 ) . .

Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm.  Spiny Goldenweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, On a lava capped mesa in the Denver Formation. South table Mt.;on mesatop near old road along east rim. 13N 0484000E 4400300N. Loraine Yeatts 2100. 28 Jul 1985. ( KHD21745 ) . .

Xanthium strumarium L.  Common Cocklebur. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, S. Table mountain, edge of Quaker road; 13N 0484293E 4399631N. Loraine Yeatts 770. 7 Aug 1983. ( COLO00150466 KHD19710 ) .

Berberidaceae

Berberis repens Lindl.  (Syn: Mahonia repens (Lindl.) G. Don ) Creeping Barberry. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Tom Schweich 7/13/2019. Slope under ponderosa pine growing around rocks. Tom Schweich 4/18/2019. .

- North Table Mountain Park, Few plants on strath above creek; many more plants at higher and drier locations. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m. northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. Tom Schweich 1309. 12 Apr 2016. ( JCOS s.n. KHD00064104 UC UCR277958 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. .

Betulaceae

Corylus cornuta Marshall.  (Syn: Corylus cornuta Marshall var. cornuta ) Beaked Hazelnut. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Lower east slopes of North Table Mountain, along the North Table Loop north of the Mesa Top Trail, 1.57 km. northwest of the Easley Road trailhead; 4.56 km. northeast of the GNIS location of Golden. Tom Schweich 1520. 29 Jul 2016. Northeast slope of North Table Mountain. along the North Table Loop, almost directly downslope of the GNIS location of North Table Mountain, 4.56 km. northeast of the GNIS location of Golden Tom Schweich 1648. 1 Jun 2017. ( JCOS s.n. ) Determination tentative. Lower northeast slopes of North Table Mountain, adjacent to North Table Loop, which has the appearance of once having been a road at this location, 4.55 km. northeast of the GNIS location of Golden. Tom Schweich 1802. 8 May 2018. ( KHD00069133 ) .

Boraginaceae

Cryptantha virgata (Porter) Payson.  (Syn: Oreocarya virgata (Porter) Greene ) Miner"s Candle. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Gentle rocky southwest-facing slope with forest duff near edge of ponderosa pine woodland. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest base of hogback in center of parcel, 22.4 km. north northwest of the GNIS location of Golden. Tom Schweich 2157. 13 Jul 2019. ( Golden ) .

- North Table Mountain Park, On top of the flat surface of a spoils pile from the basalt quarry to the west. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden Tom Schweich 1403. 8 Jun 2016. ( JCOS s.n. KHD00063985 OBI83191 UCR277982 ) .

- South Valley Park, Tom Schweich 5/20/2020. .

- South Table Mountain, On sparsely vegetated south-facing clay slope. South Table Mountain; south-facing clay slope just west of Quaker Rd. UTM: 842993 Loraine Yeatts 502. 24 May 1983. ( COLO00171447 ) on hillside Northwest of gate (Quaker Road), 13N 0484302E 4399576N. Mary E. Edwards 431. 6 Jun 1983. ( KHD19220 ) . .

Cynoglossum officinale L.  Gypsyflower. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Also collected nearby: Lithospermum occidentale, Toxicodendron rydbergii, and Thinopyrum intermedium. Colorado Noxious Weed List B. High plains above Rocky Flats, west 1.7 mi. on CO Hwy 72 from CO Hwy 93, generally north 1.0 mi. on Plainview Road, then 365 m. east into a thicket, primarily of Prunus virginiana, 19.6 km. north northeast of the GNIS location of Golden. Tom Schweich 2124. 6 Jul 2019. ( Golden OBI ) .

- South Table Mountain, a lava capped mesa in the Denver Formation. South Table Mountain, along trail on West facing slope south of Castle Rock. 13N 0483669E 4400436N. Loraine Yeatts 905. 6 Jun 1984. ( KHD39030 ) A lava capped mesa in the Denver Formation; clay substrate, at edge of small flowing stream in large Circium Patch. occassional to scattered; Survey of Golden Gate Canyon State Park--Colorado Native Plant Society [? -- Ed.] Front Range, South Table Mountain; 1st major North facing gully East of Castle Rock. 13N 0483130E 4399950N. Loraine Yeatts 1456. 4 Jun 1987. ( KHD25149 ) . .

Ellisia nyctelea (L.) L.  Aunt Lucy. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Hidden in short mown grasses. Northwest side of North Table Mountain, in the road to the underground water tank 30 m. northeast of the tank and 60 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. Tom Schweich 1391. 1 Jun 2016. ( JCOS s.n. KHD00063843 ) . .

Heliotropium curassavicum L.  Seaside Heliotrope. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Southeast corner of a natural pond, in an opening between cattails. Plants first recognized in the field by Bob Legier. Top of North Table Mountain, along the Tilting Mesa Trail, 3.36 km. north northeast of the GNIS location of Golden. Tom Schweich 1959. 21 Jun 2018. ( KHD00069159 ) . .

Lappula occidentalis (S. Watson) Greene.  (Syn: Lappula redowskii (Hornem.) Greene ) Flatspine Stickseed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Valley Park, Tom Schweich 5/20/2020. .

- South Table Mountain, South Table Mountain, flat Mesa top near west edge, near powerline. 13N 0484293E 4399631N. Loraine Yeatts 542. 1 Jun 1983. ( KHD19484 ) a lava capped mesa in Denver Formation. With shrubs on short, steep East facing slope. South Table Mountain. 13N 0484099E 4400200N. Loraine Yeatts 2000. 19 May 1985. ( COLO00158923 KHD24442 ) . .

Lappula occidentalis (S. Watson) Greene var. cupulata (A. Gray) Higgins.  (Syn: Lappula redowskii (Hornem.) Greene var. cupulata (A. Gray) M. E. Jones ) Crowned Stickseed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Open grassland on south-facing slope. Southeast base of North Table Mountain, along the neighborhood access trail, 195 m. northwest of the trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden Tom Schweich 1346. 12 May 2016. ( KHD00068374 UCR278794 ) .

- Ranson/Edwards Homestead Open Space Park, Among short grasses and forbs on a drier, gravelly alluvial ridge. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 340 m. north of Plainview Road. Tom Schweich 1378. 29 May 2016. ( EIU022395 JCOS s.n. KHD00063826 ) . .

Lithospermum arvense L.  (Syn: Buglossoides arvensis (L.) I. M. Johnst. ) Corn Gromwell. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 30 cm., hairs appressed with pustular bases; Stem, some branched distally; Leaves, basal and cauline, basal, petiole 5 mm. + blade 13 mm. × 3.5 mm. wide, slightly obovate, margin entire, hairs as above, withering, cauline, alternate, sessile, 19 mm. × 3.7 mm. wide, margin entire, hairs as above; Calyx, lobes, 5.2 mm. × 0.7 mm. wide, enlarged in fruit to 7 mm., hairs as above; Corolla, tube 4 mm. + throat 1 mm. + lobes 1.5 mm., blue to white, abaxial spreading hairy; Stamens, attached in tube; Style, 1.2 mm., Nutlets, #(1-2) 3 (4), 2.8 mm. × 2 mm. wide, green - tan, tuberculed (Described from Coll. No. 1783 and Coll. No. 1827).

- Matthews/Winters Park, In a dry grassy meadow with Alyssum parviflorum. Weedy annual locally common to abundant. Mathews/Winter Parks: About 0.2 mile from Red Rocks trailhead near a historic cemetery. Verbatim Coordinates: 13 0482288E 4392315N 7.5' Morrison quad. T4S R70W SEC27 Judy King, with Linda Senser; Stan Smookler 2. 4 May 2009. ( KHD47888 ) Duplicates Judy King collection 4 May 2009, KHD47888. Also collected in Kinney Run, Golden, my Coll. Nos. 1783 and 1827. Beside the Village Walk Trail, near the Mount Vernon Cemetery, 7.25 km. south of the GNIS location of Golden Tom Schweich 1788. 19 Apr 2018. ( COLO02348191 JCOS s.n. KHD00069155 OBI124854 UCR ) . .

Lithospermum incisum Lehm.  Narrowleaf Stoneseed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial … cleistogamic flowers present, in fruit usually with recurved pedicels. Flowers monomorphic.

- Lippincott Property, Edge of ponderosa pine woodland exposed to prairie to the south. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, north-central area of parcel, 22.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2067. 6 Jun 2019. ( Golden OBI ) .

- North Table Mountain Park, Northwest-facing slope, a little drier than surrounding area. Northwest base of North Table Mountain, about 150 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1382. 1 June 2016. ( JCOS s.n. KHD00063831 UC UCR277981 ) On top of the flat surface of a spoils pile from the basalt quarry to the west. Uncommon, very widespread, but seldom seen, and never in large numbers. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1406. 8 Jun 2016. ( CS EIU JCOS s.n. ) .

- Ranson/Edwards Homestead Open Space Park, High plains merging into Ponderosa pine woodland, 2.2 miles on Plainview Road north of CO State Highway 72, then 20 m. west of Plainview Road, 16.3 km north northwest of Golden. Tom Schweich 1124. 28 May 2015. ( KHD56964 ) .

- South Table Mountain, On southwest gentle slope in grassy meadow. South Table Mountain, Southwest slope. 13N 0483600E 4400300N. Loraine Yeatts 546. 1 Jun 1983. ( COLO 00160275 KHD19221 ) . .

Lithospermum multiflorum Torrey ex A. Gray.  Many Flowered Stoneseed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial … cleistogamous flowers absent. Flowers heterostyled and dimorphic.

- Ranson/Edwards Homestead Open Space Park, Georeference Remarks: I plotted the UTM along the section line of sections 7 and 18 at 6451 ft and increased the CV to 5 to include sections 17 and 18. RA Ranson/Edwards Park/N. of Road 72; E of Plainview. Donald L. Hazlett 10918. 9 Jun 1999. ( COLO00368647 ) . .

Lithospermum occidentale (Mack.) Weakley, Witsell & D. Estes.  (Syn: Onosmodium bejariense DC. ex A. DC. var. occidentale (Mack.) B. L. Turner , Onosmodium molle Michx. ) Western Gromwell nee Marbleseed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, East-facing swale; also collected here: Calochortus gunnisonii and Claytonia rosea. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open prairie in southeast portion, 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2107. 1 Jul 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, One plant, in bloom, others nearby, not blooming. Tom Schweich 6/3/2018. Between two thickets of Prunus virginiana on the same break in slope. Collected nearby: Thinopyrum intermedium; observed nearby: Toxicodendron rydbergii. High plains above Rocky Flats, west 1.7 mi. on CO Hwy 72 from CO Hwy 93, generally north 1.0 mi. on Plainview Road, then 400 m. east to a small break in slope, 19.6 km. north northeast of the GNIS location of Golden. Tom Schweich 2125. 6 Jul 2019. ( Golden ) .

- South Table Mountain, On south facing slope below mesa edge; recent burn site, among lava boulders. South Table Mountain.13N 0484200E 4399200N. Loraine Yeatts 601. 27 Jun 1983. ( BRY0193293 COLO00179226 KHD19223 ) South facing slope below mesa edge among lava boulders. Collected earlier in season from same patch. South Table Mountain. 13N 0484200E 4399200N. Loraine Yeatts 836. 9 Sep 1983. ( COLO00179218 KHD19224 ) . .

Mertensia lanceolata (Pursh) DC.  Prairie Bluebells. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, with spreading-ascending branches to 20 cm.; Stem, glabrous; Leaves, basal and cauline, basal, petiole 55 mm. + blade 50 mm. × 12.5 mm. wide, lanceolate, distinct lateral veins, papillate adaxially, margin, entire, appressed ciliate; cauline, sessile, 40 mm. × 4 mm. wide, without distinct lateral veins, papillate to strigose (oriented toward apex) adaxially, margin, entire, appressed ciliate; Inflorescence, panicle; Calyx, not divided to base, tube 1.5 mm. + lobes 2-3 mm.; Corolla, tube 4.0-6.5 mm. + lobes 4.5-7.5 mm., free 2.0 mm., limb 5-10 mm., deciduous, blue, small tufts or a ring of hairs near (2.2 mm.) base of throat; Stamens, #5-6, inserted, attached just below (0.5 mm.) throat/fornices; Filaments, 2.0-3.5 mm. filaments ≥ anthers; Anthers, 1.8-2.3 mm., versatile, yellow; Ovary, 0.7 mm. × 1.3 mm. wide, partially fused to calyx; Style, 7.0-7.5 mm., single, ±≥anthers; Stigma, simple; Fruit, #4 nutlets, 1.7 mm. × 1.5 mm. wide. (Described from Coll. Nos. 1906 & 2035.)

- Lippincott Property, Deep ponderosa pine forest duff. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, north of Bull Gulch about half way to north boundary, west side of ridge, 23.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2035. 26 May 2019. ( Golden ) .

- Mount Falcon Park, West-facing, grassy slope of small unnamed hill, 630 m north northwest of Mt. Falcon, approximately 13.5 km south of Golden. Tom Schweich 1129. 1 Jun 2015. ( KHD56962 ) .

- North Table Mountain Park, Growing in afternoon shade of a small point of rocks, southeast exposure, more along the trail above. Along the lower portion of the Golden Cliffs Trail, about 200 m. from the parking lot and trailhead,1.5 km. northeast of the GNIS location of Golden. Tom Schweich 1320. 4 May 2016. ( JCOS s.n. KHD00063818 UC UCR277961 ) .

- Ranson/Edwards Homestead Open Space Park, Wet alluvial slope above Coal Creek, Stevens parcel immediately south of Ranson/Edwards parcel, 3.55 km west southwest of the GNIS location of Rocky Flats Tom Schweich 1325. 5 May 2016. ( CAS JCOS s.n. KHD00063820 ) .

- South Valley Park, Tom Schweich 2290. 20 May 2020. ( Golden ) .

- South Table Mountain, South table mountain, along Quaker Road on east facing roadcut. 13N 0484301E 4399905N. Loraine Yeatts 495. 16 May 1983. ( KHD19222 ) South facing slope near local high point among lava boulders. S. Table Mt. UTM: 840993. Loraine Yeatts 505. 24 May 1983. ( BRY0182931 COLO00164830 ) . .

Myosotis micrantha Pall. ex Lehm.  Small-Flowered Forget-Me-Not. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Deep forest duff in ponderosa pine woodland, with Collomia linearis, Eriogonum umbellatum, Hypericum perforatum, and Campanula rotundifolia. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest corner near the railroad tracks, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2154. 13 Jul 2019. ( Golden ) . .

Phacelia heterophylla Pursh.  Varileaf Phacelia. CalPhotos. Jepson eFlora. SEINet Taxon.

Described by Pursh (1814) from a collection by M. Lewis Jun-Jul, 1806 on the banks of the Kooskooskie (Clearwater) River.

- Lippincott Property, Open ponderosa pine woodland with a lot of cheatgrass. Subspecies heterophylla if infraspecific names are to be applied, as this is not the subspecies virgata found in northern California and Oregon. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2081. 17 Jun 2019. ( Golden OBI ) .

- North Table Mountain Park, Trailside, in colluvium at base of steep slope, along the Mesa Top Trail, just below the east rim of North Table Mountain, 3.8 km northeast of the GNIS location of Golden. Tom Schweich 1138. 9 Jun 2015. ( CAS JCOS s.n. KHD56844 UC UCR265714 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; S. facing slope; occasional. South Table Mountain, W. of Quaker Road. 13N 0484293E 4399631N. Loraine Yeatts 603. 27 Jun 1983. ( KHD20699 ) A lava capped mesa in the Denver Formation. On S.W. facing slope above gully with Cercocarpus. Occasional. S. Table Mt. UTM: 827002. Mary E. Edwards 434. 1 Jun 1983. ( COLO00411298 ) . .

Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. var. hispidulus (Greene) Dorn.  (Syn: Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst. var. penicillata (Greene) Löve ) Scouler's popcornflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 10 cm., ±appressed hairy throughout; Stem, decumbent to ascending, not winged; Leaves, basal, unknown, cauline, alternate, 35 mm. × 2.5 mm. wide, linear; Calyx, lobes #4, in fruit, 3 mm.; Corolla, very small, white; Style, 0.4 mm., entire; Nutlets, #4, 1.8 mm., attachment baso-lateral, tuberculed abaxially (not hooked or barbed). Treated as ssp. penicillata in Weber&Wittmann (2012), at rank of species in California (Baldwin, et al., 2012). (Described from Coll. No. 1452, 22 June 2016).

- North Table Mountain Park, In shallow water of permanent pond. North Table Mt., ca. 1.5 mi NE of Golden. TRS: T3S R70W SEC22 Rick Brune 14 May 1992. ( COLO00172270 ) Drying mud, bottom of a small reservoir. Top of North Table Mountain, along the Tilting Mesa Trail, 2.64 km. north northeast of the GNIS location of Golden. Tom Schweich 1958. 21 Jun 2018. ( JCOS s.n. KHD00069151 OBI170763 ) Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side. Top of North Table Mountain, at the northeast edge of a small ephemeral pond, 2.4 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1452. 22 Jun 2016. ( CS JCOS s.n. KHD00063980 ) .

- Ranson/Edwards Homestead Open Space Park, Muddy flat with sheet flow water. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. Tom Schweich 1689.2 28 Jun 2017. ( KHD00065582 ) .

- South Table Mountain, Lava capped mesa in the Denver formation; in mud near edge of shallow ephemeral pond on mesatop; with Limosella aquatica, Barbarea orthoceras. South Table Mountain. 13N 0483530E 4399920N. Loraine Yeatts 4267. 8 Jun 1999. ( KHD33482 ) .

Brassicaceae

Alyssum alyssoides (L.) L.  CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Margin of a small meadow in saddle between hogback and flatiron. Very wet. Collected with Veronica arvensis and V. biloba. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2063.2 6 Jun 2019. ( Golden ) . .

Alyssum simplex Rudolphi.  (Syn: Alyssum minus Rothm. , Alyssum parviflorum Fisch. ex M.Bieb. ) European Madwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, tap-rooted, to 12-30 cm., stellate hairy throughout (typically doubly branched and 8-pointed); Stem branched at base, ascending; Leaves basal, withered at flowering, appear compound, cauline, alternate, 14-28 mm. × 3.5-5.0 mm., oblanceolate, margin entire, tip acute, sessile or vaguely short-petioled; Inflorescence not bracted; Pedicels, in fruit, 4.5 mm.; Sepals, 4, 2 mm. × 0.7 mm. wide, deciduous in fruit; Petals 2.9-3.0 mm., yellow fading white,clawed, entire to tip slightly notched; Stamens, 2.5-2.6 mm.; Filaments, 2.3 mm., winged proximal 1.5-1.8 mm., not toothed; Style persistent, 1.3 mm., few hairs at base; Fruit round, 3.5-5.0 mm. × 5.6 mm. wide, margin entire, compressed parallel to the replum, hairy, hairs thinning as fruit matures; Ovules, 4 (most keys and descriptions say 2 when they give a specific number, but the genus is described as having 1-2[4] ovules). (Described from Clyde Golden, 25 Jun 2011, Coll. No. 1090, 30 Apr 2015, and Coll. No. 1367, 24 May 2016).

- Mount Galbraith Park, In the saddle near the top of Nightbird Gulch trail. Tom Schweich 1098. 3 May 2015. ( JCOS s.n. ) .

- North Table Mountain Park, Lower west slopes of North Table Mountain, on the City of Golden's North Table Mountain Trail, which is also the access road to a water tank, 75 m south of the North Table Loop. Tom Schweich 1090. 30 Apr 2015. ( CAS JCOS s.n. KHD56939 UC2045769 UCR265980 ) Larger plants here amidst grasses, mostly smooth brome. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1367. 24 May 2016. ( COLO02348506 CS JCOS s.n. UC ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, then 0.9 miles north on Plain View Road, to an old ranch road. Roadside and among short grasses, older terrace of Coal Creek. Tom Schweich 1597. 4 May 2017. ( CDA Golden JCOS s.n. KHD00065385 ) .

- South Table Mountain, On south facing slope below mesa edge under open cover of Cercocapus montanus. 3 plants locally, South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 346. 28 Feb 1983. ( KHD19723 ) South facing slope just west of Quaker road below mesa edge. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 464. 2 May 1983. ( COLO00173088 KHD19724 ) . .

Arabis pycnocarpa M. Hopkins var. pycnocarpa.  (Syn: Arabis hirsuta (L.) Scop. , Arabis hirsuta (L.) Scop. var. pycnocarpa (M. Hopkins) Rollins ) Cream Flower Rockcress. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, In shrubby area. North Table Mountain, south side, near Golden. 13N 0481425E 4402103N. Stanley Smookler 23 May 1993. ( KHD39068 ) .

- Ranson/Edwards Homestead Open Space Park, Along a low ridge that is a little drier and rockier than surrounding grass land; moss growing on bare soil. This is apparently the only name that remains in Arabis in Colorado. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 570 m. northeast past the old homestead, about 15.9 km. north of the GNIS location of Golden. Tom Schweich 1836. 17 May 2018. ( JCOS s.n. KHD00068474 UCR ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, on North facing vertical barren, 50 ft cliff face above seep, in crevices; with Cheilanthes feei. occassional; NPS Herbarium of Rocky Mountain National Park, Cat. No. ROMO-008721, Acc. No.ROMO-00887 KHD, [??? - Ed.] South Table Mountain. 13N 0483230E 4401000N. Loraine Yeatts 2232. 8 May 1990. ( KHD28292 ) Only few plants in crevices on n. facing vertical, barren, 50 ft. cliff face, above seep; with Cheilanthes feei. Front Range, S. Table Mt., a lava capped mesa in the Denver formation. UTM: 8323E 0100N. Loraine Yeatts 2394. 18 Jun 1990. ( COLO00172551 ) . .

Barbarea vulgaris R. Br.  Garden Yellowrocket. CalPhotos. Jepson eFlora. SEINet Taxon.

Probably a biennial or perennial, to 40 cm., terrestrial but growing in flowing water, glabrous throughout; Leaves, lower cauline, 150 mm. × 45 mm. wide, pinnafitid, lyrate, lobes, #9, terminal lobe 47 mm. × 40 mm. wide, auriculate, auricles, glabrous, leaves reduced upward, upper cauline, sessile, 35 mm. × 18 mm. wide, lobes, 3; Inflorescence, not bracted; Flowers, radial; Sepals, 2.5 mm. × 1.8 mm. wide, ovate, rows, #1, color, yellow; Petals, 6 mm., obovate, claw not conspicuously differentiated from blade, margin, entire, color, yellow; Stamens, #6; Filaments, 4 mm., plain; Anthers, 1 mm.; Fruit, pedicels, 5 mm., glabrous, mature, 19.5 mm. × 0.5 mm. wide, spreading, glabrous. (Described from Coll. No. 1818, 16 May 2018.)

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93,1.0 mile north on Plainview Road, then 400 meters east to the lower terrace of Coal Creek. Tom Schweich 1599. 4 May 2017. ( JCOS s.n. KHD00065400 ) .

- South Table Mountain, Wet spot by intermittent stream; uncommon. S. Table Mt., a lava capped mountain in the Denver Formation; by intermittent stream at top of telephone cable right of way at head of major E. facing gully overlooking Rolling Hills Country Club. UTM: 841003. Peter G. Root 852. 9 May 1985. ( COLO00173765 ) . .

Boechera fendleri (S.Watson) W.A.Weber.  (Syn: Arabis fendleri (S. Watson) Greene ) Fendler's rockcress. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial (short-lived?), terrestrial, herb, tap-rooted, to 50 cm., branched hairs proximally, glabrous distally; Leaves, basal, petiole 9 mm. + blade 19 mm. × 5.5 mm. wide, oblanceolate, entire, hairs 3-4 branches, cauline sessile, spear-shaped, 21 mm. × 4 mm. wide, auriculate, 1.0-1.5 mm.; Inflorescence, raceme, 125 mm.; Sepals, #4, 4 mm., ovate; Petals, #4, 6 mm., entire, lavender; Stamens, #6; Filaments, 3 mm., narrowly winged; Anthers, 1.5 mm.; Fruit, pedicels, 10 mm., glabrous, 50 mm. × 0.8-1.0 mm. wide, recurved; Ovules, many, biseriate (Described from Coll. No. 1812, 10 May 2018).

- North Table Mountain Park, Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1812. 10 May 2018. ( JCOS s.n. KHD00068471 UCR ) .

- Ranson/Edwards Homestead Open Space Park, Along a low ridge that is a little drier and rockier than surrounding grass land; moss growing on bare soil. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 700 m. northeast past the old homestead, about 15.9 km. north of the GNIS location of Golden. Tom Schweich 1839. 17 May 2017. ( COLO02347706 JCOS s.n. KHD00068470 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, In flat meadow on North edge of mesatop with Microsteris gracilis, grasses and sedge. Label say S16, UTM actually in S17, corrected., South Table Mountain. 13N 0483300E 4400850N. Loraine Yeatts 1393. 7 May 1987. ( COLO00175372 KHD24508 ) . .

Camelina microcarpa Andrz. ex DC.  Little-Podded False Flax. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, terrestrial, herb, 45 cm. to 80 cm. tall; Stem, erect, mostly single, some branched mid-stem, proximal, simple and forked hairs, distal, glabrous; Leaves, basal, absent or withered, cauline, #11-25, sessile, distal basally lobed 1.2 mm., 26-62 mm. × 6.5-10 mm. wide, reduced above, lanceolate, hairs simple and forked; Inflorescence, to 220 mm. × 35 mm. wide, not bracted, not one-sided; Flowers, radial; Pedicels, 4-8 mm., glabrous; Sepals, #4, rows, #1, 2.4-2.7 mm. × 0.8-1 mm. wide, ovate, color, green, margin chartaceous, tip purplish, abaxially hairy; Petals, 3.7-4.0 mm. × 0.7-0.9 mm. wide, oblong-spatulate, margin, entire, color, yellow; Stamens, #6, 3 mm.; Filaments, plain or maybe very narrowly winged; Anthers, 0.7 mm., ovate; Ovary, 1.8 mm. × 0.9 mm. wide; Style, 0.8 mm.; Stigma, capitate, 0.4 mm. wide; Fruit (mature), pedicels, 15 mm., 3 × than fruit, spreading, 5 mm. × 3.2-3.5 mm. wide, wider above middle, somewhat flattened, parallel to replum, coriaceous, short-winged (or strong-margined), valve mid-vein apparent but not prominent; Seeds, many, 1.0 mm. × 0.7 mm. wide, angled, papillate (Described from Coll. No. 1876 and 1883).

- Lippincott Property, Open ponderosa pine woodland with a lot of cheatgrass. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2081.1 17 Jun 2019. ( Golden ) .

- North Table Mountain Park, Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, just off North Table Loop in the direction of Ramstetter Reservoir, 3.7 km. north of the GNIS location of Golden. Tom Schweich 1876. 24 May 2018. ( JCOS s.n. KHD00068469 ) .

- South Table Mountain, On downed aspen tree along trail to Spencer Lake. South Table Mountain, on west slope along trail to Castle Rock. A lava capped mesa in the Denver Formation, on west facing slope along trail. Loraine Yeatts 934. 25 Jun 1984. ( KHD20859 ) Meadow; locally abundant; with Descurainia. S. Table Mt., a lava capped mesa in the Denver Formation; meadow below S. facing mesa slope E of Quaker, N of hill 6020. UTM: 841992. Loraine Yeatts 1398. 11 May 1987. ( COLO00179820 ) . .

Capsella bursa-pastoris (L.) Medik.  Shepherd's Purse. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, scapose, to 27 cm., hairs, sessile, stellate, 3-4 points, throughout; Leaves, basal, oblanceolate, 55 mm. × 16 mm. wide, deeply lobed, but not all the way to mid-rib; cauline, 4-5 stem leaves, lanceolate, 25 mm. × 10 mm. wide, base sagittate; Flowers, small, petals white; Fruit, obcordate, 4 mm. × 3.5 mm. wide. The single species in this genus; described by some as the second-most common weed on Earth (Described from Coll. No. 1336, 11 May 2016).

- Lippincott Property, Disturbed places, in this case an old road, along with other early annuals, such as Collinsia parviflora and Draba nemorosa. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, approximate center of property. 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2017. 18 Apr 2019. ( Golden ) . .

Chorispora tenella (Pall.) DC.  Crossflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, hairs 0, sparsely stalked-gland-dotted; Leaves basal, withered at flowering, cauline simple, not basally lobed or clasping; Flowers radial; Corolla purple; Stamens 6; Ovary linear when young; Fruit linear, bilateral, to 4 cm, seed in proximal 2.5 cm., tip pointed; Seeds in two rows, brown, 1 mm (Described from Coll. No. 301, 5 Nov 2012).

- Lippincott Property, Coordinates estimated by GoogleEarth. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south parcel, high prairie above Rocky Flats, 21.5 km. north northwest of the GNIS location of Golden. Tom Schweich, with Irene Weber 2022. 24 Apr 2019. ( Golden ) .

- North Table Mountain Park, Possibly at a former home site. Just inside North Table Mountain Park, southeast side of North Table Mountain, about 150 m, northwest of the trailhead for the Neighborhood Access Trail at the corner of Ridge Road and Ulysses Avenue, 2.9 km northeast of the GNIS location of Golden. Tom Schweich 1308. 12 Apr 2016. ( CAS JCOS s.n. KHD00063634 OBI83181 UC UCR277959 ) .

- South Table Mountain, A lava capped mesa of basaltic origin in the Denver Formation. South Table Mountain along road to Castle Rock. 13N 0483599E 4400313N. Loraine Yeatts 468. 2 May 1983. ( KHD19722 ) . .

Descurainia incisa (Engelm.) Britton.  CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, in slightly depressed grassy area on flat mesatop. South Table Mountain. 13N 0483200E 4400600N. Loraine Yeatts 1395. 7 May 1987. ( COLO00183517 KHD25546 ) . .

Descurainia pinnata (Walter) Britton.  Western Tansymustard. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation. South facing slope below mesa edge. South Table Mountain West of Quaker Road. 13N 0484100E 4399100N. Loraine Yeatts 878. 22 May 1984. ( COLO00183764 KHD20835 ) . [ Miscellaneous: Original ID as Descurainia pinnata (Walt.) Britt. Annotations: Descurainia incisa subsp. viscosa (Rydb.) Rollins, det. by W.A. Weber, Dec. 1993. ] .

Descurainia sophia (L.) Webb.  Tansy Mustard. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, 30 cm. (to 50 cm. when growing among grasses), not scapose; Tap root; Stem simple at base, branched distally; Hairs many-branched; Leaves basal 0, cauline compound, 2-3 pinnately dissected, sessile, not basally lobed, sagittate, or clasping; Inflorescence not bracted; Pedicel, in fruit diverging 30–45°; Petals yellow, 2.5 mm.; Ovary linear; Stigma ±entire (there are clearly two separate segments of the stigma that are receptive, but there is no central cleft between them); Fruit (7-15 mm.) -25 mm., linear (not fusiform or club-shaped), glabrous, not appressed; Septum veined Seeds, multiseriate (Described from Coll. Nos. 404, 854, and 935).

- Lippincott Property, Open ponderosa pine woodland with a lot of cheatgrass. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2081.2 17 Jun 2019. ( Golden ) . .

Draba Draba. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Small white crucifer, no fruit. Tom Schweich 4/14/2016. . .

Draba nemorosa L.  Woodland Whitlow Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual terrestrial herb, 11 to 25 cm., hairs vary: none, simple, forked, but not dolabriform; Stem, proximal, hairs simple and forked, distal, glabrous; Leaves, basal and cauline, Basal, simple, 12 mm. × 4.5 mm. wide, hairs forked; Cauline, #5-6, sessile, 11 mm. × 4 mm. wide, sparsely dentate, hairs, simple and forked; Inflorescene, raceme; Sepals, rows, #1, 1.3 mm. × 0.7 mm. wide, ovate, color, green turning yellow, abaxial hairs wavy; Petals, 2 mm. × 0.7 mm. wide, spoon-shaped, margin entire, color, yellow; Stamens, #4 or 6, 1.3 mm.; Anthers, 0.3 mm.; Style, very short; Fruit, pedicels, 20 mm., puberulent, body, 7 mm. × 2 mm. wide, ascending, short straight appressed hairs (Described from Coll. No. 1821, 16 May 2018).

- Lippincott Property, Disturbed places, in this case an old road, along with other early annuals, such as Collinsia parviflora and Capsella bursa-pastoris. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, approximate center of property. 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2018. 18 Apr 2019. ( Golden ) .

- South Table Mountain, On Mossy ledges at head of gully, common. On mossy ledges at head of 1st N-facing gully E of Castle Rock; with Collinsia parviflora, Penstemon virens, Eriogonum umbellatum. Not easily seen, but probably common. S Table Mt., 1st N facing gully E of Castle Rock. Loraine Yeatts 1389. 23 Apr 1987. ( COLO00189597 CS81498 ) A lava capped mesa in the Denver Formation; on mossy ledges at head of gully with Collinsia parviflora, Penstemon virens, Eriogoum umbellatum. South Table Mountain, 1st North facing gully East of Castle Rock. 13N 0483020E 4400950N. N side of road 68. SW corner of Sec 18. Loraine Yeatts 1396. 7 May 1987. ( KHD25545 ) . .

Draba reptans (Lam.) Fernald.  Carolina Whitlow Grass. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, from slender taproot, to 10 cm.; Leaves, basal, withered in fruit, entire, cauline, 0-1 pair per stem, 6 mm. × 2 mm. wide, entire, hairs branched; Pedicels, glabrous; Flowers, petals, color unknown; Fruit, distributed in upper ⅕-⅓ of rachis (Described from Coll. No. 1376, 29 May 2016).

- Ranson/Edwards Homestead Open Space Park, Growing among short grasses and forbs. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 340 m. north of Plainview Road. Tom Schweich 1376. 29 May 2016. ( KHD00063531 ) Along a low ridge that is a little drier and rockier than surrounding grass land; moss growing on bare soil. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 567 m. northeast past the old homestead, about 15.9 km. north of the GNIS location of Golden. Tom Schweich 1838. 17 May 2018. ( JCOS s.n. ) .

- South Table Mountain, a lava capped mesa in the Denver formation; Meadow W of Quaker road on gentle N slope of hill 6020 below perimeter of Cercocarpus montanus cover; with Androsace occidentalis, Carex pensylvanica ssp. heliophila, Chondrosum gracile, Lomatium orientale, Alys Front Range, South Table Mt. 13N 0484091E 4398978N. Loraine Yeatts 4858. 28 Apr 2003. ( KHD38436 ) . .

Erysimum capitatum (Hook.) Greene.  Sanddune Wallflower. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial or at least biennial, 16 cm. to 45 cm., hairs dolabriform throughout; Root, tap; Stems, erect, leafy, proximal not woody hairs as above; Leaves, basal and cauline, basal, petiole, indistinct, ±10 mm., + blade, 50-100 mm. × 2.5-3 mm. wide, narrowly oblanceolate, margin 1-3 shallowly pinnate dentate, cauline, nearly sessile, 42 mm. × 2.5 mm. wide, ±linear, margin, entire; Inflorescence, raceme 130 mm. × 45 mm. wide, not bracted; Pedicels, 3-6 mm., elongating as flower matures, ascending; Flowers, radial; Sepals, #4, rows, 1, 7 mm. × 1-1.5 mm. wide, narrow and wide pairs opposite; Petals, claw, 10 mm. + blade 6 mm. × 4-4.5 mm. wide, spoon-shaped, margin, entire, color, yellow, orange; Stamens, #6, 11 & 15 mm., tetradynamous (2 short, 4 long); Anthers, 4.5 mm.; Ovary, 4 mm.; Style, 9 mm.; Stigma, capitate; Fruit, 17 mm. × 1 mm. wide, ascending, hairy as above; Seeds, unknown (Described from Coll. No. 206, 2 Apr 2000 and Coll. No. 1835, 17 May 2018).

- Clear Creek Canyon Park, Grassy slopes. Tom Schweich 4/27/2018. .

- Mount Galbraith Park, South-facing, steep, rocky slopes above the Nightbird Gulch trail. Tom Schweich 1100. 3 May 2015. ( JCOS s.n. KHD56937 ) .

- Ranson/Edwards Homestead Open Space Park, Open gentle slope with grasses and forbs, lightly grazed in 2016. 1.6 mi. west on CO 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 470 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1412. 10 Jun 2016. ( JCOS s.n. KHD00063534 ) Along a low ridge that is a little drier and rockier than surrounding grass land; moss growing on bare soil. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 570 m. northeast past the old homestead, about 15.9 km. north of the GNIS location of Golden. Tom Schweich 1835. 17 May 2018. ( COLO02347730 Golden ) .

- South Table Mountain, A lava capped mesa in the Denver Formation. At base of South facing slope next to Rimrock Road. In flat area. South Table Mountain, Next to Rimrock road. 13N 0483041E 4399200N. Loraine Yeatts 888. 28 May 1984. ( KHD20932 ) West facing slope with Prunus virginiana. South Table Mountain, a lava capped mesa in the Denver Formation. On a west facing slope below Castle Rock. 13 0481938E 4400443N. Mary E. Edwards 427. 1 Jun 1983. ( COLO00191916 KHD20929 ) . .

Lepidium campestre (L.) W. T. Aiton.  Field Pepperweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, herb, in dry and wet habitats, 15 cm. to 35 cm. tall; Roots, tap; Hairs, simple, on stems and leaves; Stem, erect, leafy, branched above or not; Leaves, basal, sometimes absent, petiole 10 mm. + blade 40 mm. × 12 mm. wide, oblanceolate, margin wavy, tip rounded, cauline, 12-21 mm. × 3.5-7 mm. wide, lance-linear to lanceolate, base auriculate, 2 mm., margin dentate (scalloped, though the term is rarely used), anthocyanic; Inflorescence, terminal raceme, 35-72 mm. × 17-21 mm. plus occasional several axillary racemes, not bracted, not one-sided; Sepals, #4, rows, #1, 1.2 mm. × 0.6-0.8 mm. wide, ovate, cream-green, purple distally, margin chartaceous; Petals, 1.3-1.5 mm., spoon-shaped, margin, entire, white; Style, #1, 0.5 mm., persistent; Fruit, pedicel, horizontal to spreading, 5 mm., silicle, 4.0-4.5 mm. × 3 mm. wide, margin, winged apically, 0.2 mm. at middle, 1 mm. at apex. (Described from Coll. No. 1413, 10 Jun 2016, and Coll. No. 1918.1, 3 June 2018.)

- Hildebrand Ranch Park, Habitat: Hildebrand Ranch open space along north side of Deer Creek, dominated by smooth brome, cheat grass, cottonwood overstory; Colorado, Jefferson, Hildebrand Ranch Jefferson County Open Space. Laura Vary, with Jaquan Horton 622. 23 Jun 2015. ( KHD56417 ) .

- Meyer Ranch Park, Colorado, Jefferson County, Meyer Ranch Park, Jefferson County Open Space, west of the intersection of HWY 285 and Turkey Creek Road. Verbatim Coordinates: 13S 0476090E 4376628N. Carol Winther 55. 23 Jun 2004. ( KHD48611 ) .

- Ranson/Edwards Homestead Open Space Park, Open gentle slope with grasses and forbs, lightly grazed in 2016. 1.6 mi. west on CO 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 470 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1413. 10 Jun 2016. ( CS JCOS s.n. KHD00063537 ) Annual, in sheet flow water from a small stream that has been diverted. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Roaf from CO Highway 93, 1 mi. generally north on Plainview Road, then 410 m. a little north of east to a terrace overlooking Coal Creek. Tom Schweich 1918.1 3 Jun 2018. . .

Lepidium draba L.  (Syn: Cardaria draba (L.) Desv. ) White Top. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herb, to 45 cm., spreading by rhizomes, hairs simple; Leaves, basal, not seen, cauline, sessile, base auriculate, 36 mm. × 12 mm. wide, oblanceolate, margin irregularly toothed, reduced above; Flowers, petals, white; Style, immature, 1 mm.; Fruit, silicle, immature, 1.3-1.5 mm. × 0.5-1.0 mm. wide, flattened, wings 0, glabrous, reticulate-veined (Described from Coll. No. 1366, 24 May 2016).

- North Table Mountain Park, Multiple colonies spread around gentle grassy slopes. Weed: CO DofA, List: B. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1366. 24 May 2016. ( CS JCOS s.n. KHD00063532 UC UCR277975 ) . .

Lepidium perfoliatum L.  Clasping Pepperweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, In the median and beside the Mesa Spur Trail, near the crossing of Ramstetter Creek, 130 m. south of W. 58th Avenue, surrounded on both sides by horse corrals and facilities, 5.07 km. north of the GNIS location of Golden. Tom Schweich 1808. 11 May 2018. ( Golden JCOS s.n. KHD00068463 ) . .

Nasturtium officinale R. Br.  (Syn: Rorippa nasturtium-aquaticum (L.) Hayek ) Watercress. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb to 15 cm., aquatic, hairs 0; Caudex 0; Roots, fibrous, rooting at nodes; Stem decumbent, leafy; Leaves cauline, compound, pinnately divided, petioled, Inflorescence not bracted, not one-sided; Flowers radial; Sepals 2-2.3mm., ovate to obovate; Petals 2.5-4.0 mm., white, obovate to spoon-shaped, margins entire; Stamens 6; Filaments plain; Fruit, young linear, mature 13 mm. x 1.8 mm. wide; Ovules (seeds) many, 2 rows. Treated as native to California by TJM2 and Colorado by Ackerfield (2015), but alien by Weber & Wittmann (2012) and introduced by USDA Plants. (Described from Coll. No. 889, 23 August 2012, and 2133, 7 Jul 2019).

- South Table Mountain, Locally abundant in flowing water at edge of cliff below seeping drainage. South Table Mt. 13N 0484293E 4399631N. Loraine Yeatts 638. 3 Jul 1983. ( COLO00198432 KHD19693 ) . .

Noccaea fendleri (A. Gray) Holub.  CalPhotos. Jepson eFlora. SEINet Taxon.

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Noccaea fendleri (A. Gray) Holub ssp. glauca (A. Nelson) Al-Shehbaz & M. Koch.  (Syn: Noccaea montana (L.) F. K. Meyer , Thlaspi montanum L. var. montanum ) CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herbs, with basal leaves and flowering stems to 8 cm., glabrous, prior year flowering stems persistent; Leaves, basal, 8 mm. × 4 mm. wide, ±obovate, margin entire, abaxially purple, petiole 5 mm., cauline, 8 mm. × 5 mm. wide, base auriculate, margin entire; Flowers, white, fading purple; Petals 4.5 mm.; Fruit, a silicle, 5.5-7.0 mm. × 2.5-3.0 mm. wide, obcordate, winged distally (Described from Coll. No. 1085, 25 April 2015, and Coll. No. 1328, 5 May 2016).

- Lippincott Property, Northwest facing forested slope. Collected with Besseya plantaginea and Viola canadensis. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south of Bull Gulch approximate centroid of parcel, 22.6 km. north northwest of the GNIS location of Golden. Tom Schweich 2037.1 26 May 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Few plants in the shade of ponderosa pine. Stevens parcel immediately south of Ranson/Edwards parcel, 1.5 km south of the GNIS location of Plainvew, 3.71 km west southwest of the GNIS location of Rocky Flats. Tom Schweich 1328. 5 May 2016. ( UC ) Common in shade of ponderosa pines among rocks; flat, disturbed area above Coal Creek, with much broken glass. Stevens parcel immediately south of Ranson/Edwards parcel, 1.64 km south southeast of the GNIS location of Plainview, 3.48 km west southwest of the GNIS location of Rocky Flats. Tom Schweich 1329. 5 May 2016. ( CAS OBI83177 UCR277966 ) Openings in grassy, recently burned, ponderosa pine woodland, about 520 meters northeast of Plainview, 2.1 miles north on Plainview Road from Colorado State Highway 72, then 165 m west. Tom Schweich, with Matt Schweich 1085. 25 Apr 2015. ( JCOS s.n. KHD56957 ) . .

Physaria montana (A. Gray) Greene.  (Syn: Lesquerella montana (A. Gray) S. Watson ) Mountain Bladderpod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, rosette to 5 cm. dia., flowering stems to 14 cm., not in alpine environment, eastern slope, hairs stellate throughout; Leaves, basal, rosette, 9 mm. × 6.5 mm., ovate, entire, petiole, 12 mm., cauline, 10 mm., appearing secund, narrowly oblanceolate; Inflorescence, exceeding leaves; Pedicels, in fruit, ascending; Fruit, 5 mm. × 2 mm., ovate-elliptic, hairs stellate, apex entire (not notched, although these immature). (Described from Coll. No. 1081, 23 Apr 2015).

- Ranson/Edwards Homestead Open Space Park, Among short grasses and forbs on a drier, gravelly alluvial ridge. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 340 m. north of Plainview Road. Tom Schweich 1377. 29 May 2016. ( EIU JCOS s.n. KHD00063530 ) .

- South Table Mountain, On E. facing roadcut; common, widespread. S. Table Mt. W. side of Quaker Rd. UTM: 840993. Loraine Yeatts 504. 24 May 1983. ( COLO00197772 KANU313749 ) S. table Mt. 7.5 Morrison Quad Common on hillside near mesatop. 13N 0482750E 4400694N. Loraine Yeatts 539. 1 Jun 1983. ( KHD19689 ) . .

Physaria vitulifera Rydb.  Roundtip Twinpod. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, terrestrial herb, caespitose, stellate hairy throughout, flowering branches to 15 cm.; Roots, tap; Stem, scapose, hairs as above; Leaves, basal and cauline, basal, petiole 10-35 mm. + blade 22-24 mm. × 8-14 mm. wide, elliptic, weakly pinnately lobed, to few basal leaves with a single pair of teeth, otherwise entire, tip barely acuminate, cauline, alternate, nearly sessile, 13-22 mm. × 4-4.5 mm. wide, oblancelate, margin entire; Pedicel, 5 mm., ascending, becoming s-shaped in fruit; Sepals, #4, 5-7 mm. × 1.5 mm. wide, lanceolate, green, hairy as above; Flowers, Petals, #4, 10 mm. × 2-2.5 mm. wide, obovate, margin entire, color yellow; Stamens, #6 (4 long, 2 short), 6-8 mm.; Filaments, 4.5-6 mm., pair of short filaments slightly winged proximal ½; Anthers, 1.5 mm., saggitate (?); Ovary, 2 mm. × 1.8 mm. wide; Style, #1, 4-6.4 mm., persistent, not elongating in fruit; Fruit, pedicels, 18-20 mm, longest sigmoid, hairs as above, mature fruit, didymous, 3-4.5 mm. × 4 mm. wide, round, apical sinus well-developed, basal sinus much less so, hairy as above; Ovules, 4 per ovary (Described from Coll. No. 1345, 12 May 2016 and Coll. No. 1828, 16 May 2018). Some will key to P. bellii in Ackerfield (2015) at couplet 17 per the shape of the basal leaves, which can be entire to very shallowly once dentate. However, FNANM sends this in the direction of P. vitulifera at couplet 12 based on the relative development of the basal and apical sinuses of the fruit.

- Clear Creek Canyon Park, Growing on the bank of a former quarry road, southeast-facing side of the canyon, just inside the mouth of Clear Creek Canyon, foothills of Rocky Mountain Front Range, 2.16 km west of the GNIS location of Golden. Tom Schweich 1796. 27 Apr 2018. ( COLO02348225 JCOS s.n. ) .

- North Table Mountain Park, North Table Mt., Golden. J. H. Ehlers 8360. 11 May 1942. ( COLO00203109 ) Growing on the east rim of the mesa in exposed soil. North Table Mountain. Growing on the east rim of the mesa. TRS: T3S R70W SEC 14. Mark Duff 154. 16 Jun 1992. ( COLO00203075 ) Growing in volcanic rock outcrop on toe of landslide. Flat area below the rim of North Table Mountain, and above W. 43rd Drive and Ulysses Way, 3.2 km northeast of the GNIS location of Golden. Tom Schweich 1130. 9 Jun 2015. ( JCOS s.n. KHD56963 UCR266082 ) Open grassland on south-facing slope. Southeast base of North Table Mountain, along the neighborhood access trail, 195 m. northwest of the trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden Tom Schweich 1345. 12 May 2016. ( CAS CS JCOS s.n. KHD00063528 OBI83176 UC ) .

- South Table Mountain, Common on 1980 burn site, below mesa edge. South table Mountain. South facing slope just West of Quaker Road. 13N 0484293E 4399631N. Loraine Yeatts 462. 2 May 1983. ( COLO00203042 KHD19690 ) Associated Species: Opuntia polycantha, Jim Hill mustard, Tragapogon ssp, Artemesia frigida, A. ludoviciana, Oxybaphus linearis. Coll. No. 01WYBLM11DW United States, Colorado, Jefferson, West slope of South Table Mountain and North Table Mountain, prominent mesas located just east of the city of Golden and South of Clear Creek which flows through Golden in an easterly direction. Stanley Smookler and Denise Wilson 1 Jul 2011. ( CHIC16970 ) . .

Rorippa palustris (L.) Besser.  (Syn: R. islandica (Oeder ex Murray) Borbas ) Bog Yellow-Cress. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.1 mi. generally north on Plainview Road, then 305 m. east southeast, 14.90 km. north northwest of the GNIS location of Golden. Tom Schweich 1938. 14 Jun 2018. ( JCOS s.n. KHD00068461 OBI170743 ) . .

Rorippa sinuata (Nutt.) Hitchc.  Spreading Yellowcress. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Ephemeral pond on flats above south rim of, W of Quaker Rd. in damp mud of last area of pond bed to dry, Xanthium strumarium, Thlapsi arvense, Polygonum erectum ssp. achoreum, Eleocharis acicularis Denver Formation. 1 plant forming large clump; common in grasslands above, South Table Mountain., a lava capped mesa in the Denver formation. 13N 0484293E 4399631N. Loraine Yeatts 4206. 17 Oct 1998. ( COLO00569327 KHD35614 ) . .

Rorippa tenerrima Greene.  Modoc Yellowcress. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 15 cm., generally glabrous throughout; Leaves, basal unknown, cauline, largest, petiole 26 mm + blade 60 mm. × 24 mm. wide, oblanceolate in shape, deeply pinnately lobed, reduced above; Inflorescence, raceme, ebractwate; Sepal, 0.7 mm.; Petals, 0.8 mm., color unknown, drying purple; Stamens, #6; Fruit, 7 mm. × 1.3 mm. wide, terete, ascending, not constricted, papillate; Ovules, #21 (Described from Coll. No. 1451, 22 Jun 2016).

- North Table Mountain Park, Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side. 2.4 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1451. 22 Jun 2016. ( JCOS s.n. KHD00063538 ) . .

Sisymbrium altissimum L.  Tall Tumblemustard. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual terrestrial herb, to 50 mm.; Roots, tap; Stem, erect, branched above, leafy, few simple hairs; Leaves, basal and cauline, basal: compound, (petiole short if at all present), 120 mm. × 28 mm. wide, oblong, pinnately divided, few simple hairs on petioles, mid-ribs, and margins; cauline: nearly sessile, lanceolate, very finely pinnately divided; Flowers, radial; Sepals, #4, rows, 1, 3.5-4.5 mm. × 0.8 mm. wide, small hood-shaped appendage at tip; Petals, 7 mm. × 1.5 mm. wide, margin, entire, color, yellow; Stamens, tetradynamous, 3.6, 5.2 mm.; Filaments, plain; Anthers, 2 mm.; Stigma, (weakly) 2-lobed; Fruit, 17 mm. × 0.5 mm. wide, ascending, glabrous. Described from Coll. No. 1845, 18 May 2018.

- South Table Mountain, In road bed. South Table Mountain, a lava capped mesa ofbasaltic origin in Denver Formation. Along mesatop road, to Castle Rock. 13N 0482486E 4400082N. Loraine Yeatts 649. 3 Jul 1983. ( COLO00204966 KHD19692 ) . .

Thlaspi arvense L.  Field Penny Cress. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, tap-rooted, to 50 cm., generally glabrous throughout; Stem, single, or few-branched proximally; Leaves, basal and cauline, basal, withered at flowering, cauline, sessile, auriculate, oblong, 30 mm. × 5-9 mm. wide, reduced distally, dentate; Inflorescence, raceme; Sepals, 2 mm. × 1 mm. wide, ovate; Petals, 3-3.5 mm. × 1 mm. wide, spoon-shaped, margin entire, white; Stamens, 2 mm.; Anthers, 0.5 mm.; Fruit, pedicels 10-15 mm., ascending to spreading, glabrous, fruit obovate, 10 mm. × 8 mm., wide, margin winged, tip notched 1 mm.; Ovules, biseriate, #many (Described from Coll. No. 1324, 4 May 2016).

- North Table Mountain Park, Along a social trail above Peery Parkway, adjacent to running water from spring above on upper slopes of North Table Mountain, 1.26 km north northeast of the GNIS location of Golden. Tom Schweich 1324. 4 May 2016. ( CAS JCOS s.n. KHD00063632 OBI83178 UC UCR277963 ) Gentle grassy slope. Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1365. 24 May 2016. ( COLO02348498 CS JCOS s.n. KHD00063533 ) .

- South Table Mountain, In damp South facing gully under Willow tree. South Table Mountain. 13N 0482039E 4400470N. Loraine Yeatts 481. 16 May 1983. ( COLO00208231 KHD19691 ) .

Cactaceae

Coryphantha missouriensis (Sweet) Britton & Rose.  (Syn: Escobaria missouriensis (Sweet) D.R.Hunt ) Missouri Foxtail Cactus. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, At base of boulder near Bull Gulch. Tom Schweich 4/18/2019. . .

Echinocereus viridiflorus Engelm.  (Syn: Echinocereus chloranthus (Engelm.) J.N.Haage , Echinocereus viridiflorus Engelm. var. chloranthus (Engelm.) Backeb. ) Nylon Hedgehog Cactus. CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Galbraith Park, In a saddle near the top of the Nightbird Gulch trail. Tom Schweich 1096. 3 May 2015. ( Not collected, cactus. ) .

- North Table Mountain Park, Open overgrazed meadow. 1.4 mi. NW of north Table Mesa. East of Colo. 93. G. K. Arp 870. 29 May 1970. ( COLO 00209775 ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 7/29/2015. Several cacti in bloom on this date. Tom Schweich 5/29/2016. .

- South Table Mountain, Among lava boulders, locally common. South Table Mountain, a lava capped mesa in the Denver Formation. South facing slope near local mesa high point among lava boulders. 13N 0483465E 4400102N. Loraine Yeatts 894. 30 May 1984. ( COLO00209528 KHD20412 ) . .

Opuntia macrorhiza Engelm.  Twistspine Pricklypear. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial cactus, not distinctly mat-forming; Stem, segments, 90 mm. × 60 mm. wide, flattened, bluish-green, areoles, #5-6 per diagonal row, spaced 8-14 mm., proximal, glochids only, distal, glochids and spines, spines, #2, #1, 28 mm., erect, brown to tan at tip, #1, 12 mm., recumbent, nearly white; Flowers, petals, 36 mm. × 22 mm. wide, wedge-shaped, color yellow; Stamens, many, 18 mm., yellow; Style, 20-24 mm., stout; Stigma, lobes, #6-8, 3 mm.; Fruit, 38 mm. × 17 mm. wide, narrow at base, fleshy, green, areoles, mix of glochids and short spines. (Described from Coll. No. 1948, 15 June 2018.)

- Lippincott Property, Gentle rocky southwest-facing slope at edge of ponderosa pine woodland. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest base of hogback in center of parcel, 22.4 km. north northwest of the GNIS location of Golden. Tom Schweich 2156. 13 Jul 2019. ( Golden ) .

- North Table Mountain Park, Near top of small mound, also collected here: Thelesperma megapotamicum and Rhus trilobata. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.06 km. north northeast of the GNIS location of Golden. Tom Schweich 2141. 11 Jul 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, South-facing slope above intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 295 m. west of Plainview Road. Tom Schweich 1259. 26 Jul 2015. ( KHD00062044 ) .

- South Table Mountain, South facing slope near mesa highpoint; with Opuntia polyacantha. South Table Mountain; a lava capped mesa in the Denver Formation. 13N 0481997E 4400399N. Loraine Yeatts 686. 11 Jul 1983. ( COLO00210666 KHD19266 ) . [ KHD19266 is determined O. macrorhiza, whereas COLO401000 is determined O. pheacantha. ] .

Opuntia polyacantha Haw.  Plains Pricklypear. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, No collections, but described as more common as O. macrorhiza in a collection of that taxon. Loraine Yeatts 7/11/1983. . .

Pediocactus simpsonii (Engelm.) Britton & Rose.  (Syn: Echinocactus simpsonii Engelm. , Pediocactus simpsonii (Engelm.) Britton & Rose var. minor (Engelm.) Cockerell ) Mountain Ball Cactus. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, in rocks with Mertensia lanceolata, Berberis repens, and Viola nuttallii. Tom Schweich 5/26/2019. .

- North Table Mountain Park, Tom Schweich 2/27/2016. Seven at this location, nearby 18 in a 4 m. diameter. Tom Schweich 4/16/2018. Well-vegetated slope with Cercocarpus montanus Tom Schweich 6/5/2017. 18 plants in a small radius. Tom Schweich 4/16/2018. .

- Ranson/Edwards Homestead Open Space Park, Large. Tom Schweich 9/3/2016. Tom Schweich 4/14/2016. Tom Schweich 5/5/2016. In somewhat rocky alluvial montain mahogany and ponderosa pine woodland, gentle slope, 400 meters northwest of Plainview. Tom Schweich, with Matt Schweich 1086. 25 Apr 2015. ( Cactus, not collected. ) .

- South Table Mountain, On lava gravel at edge of canyon on W. facing side (just W. of powerline and S. of road);uncommon, only few plants; only place seen. On lava gravel at edge of canyon on W. facing side (just W. of powerline and S. of road); So. Table Mtn. 13N 0483231E 4400452N. Loraine Yeatts 471. 2 May 1983. ( KHD19244 ) .

Campanulaceae

Campanula rotundifolia L.  Harebell. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, basal, ?, cauline, alternate, ±lance-linear, 52 mm. × 2.5 mm. wide; Inflorescence, solitary and loose racemes; Pedicel, 9 mm.; Calyx, tube 2.5 mm. + 5 lobes 2.5 mm. = 5.0 mm.; Corolla, 13 mm, blue-purple; Capsule, nodding, 5.5 mm. × 4.5 mm. wide, opening by pores near the base. Described from Coll. No. 1246, 24 July 2015.

- Lippincott Property, More sprawling than erect, deep forest duff in ponderosa pine woodland, with Collomia linearis, Eriogonum umbellatum, Lappula occidentalis, and Sedum lanceolatum. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest corner near the railroad tracks, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2151. 13 Jul 2019. ( Golden ) .

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. J. Reseigh 8. 2 Jun 2000. ( CS80221 ) .

- North Table Mountain Park, Four open flowers, many others in bud, around base of boulder. Tom Schweich 6/1/2017. .

- Ranson/Edwards Homestead Open Space Park, North slope along intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 204 m. west of Plainview Road. Tom Schweich 1254. 26 Jul 2015. ( CAS JCOS s.n. KHD00062049 UCR267467 ) .

- South Table Mountain, A lava capped mesa, locally common but not on mesa top or other exposures. Front Range, South Table Mountain, First major North facing gully East of castle Rock. Near head of West fork of gully North facing slope. 13N 0482060E 4400481N. Loraine Yeatts 1471. 24 Jun 1987. ( COLO00216457 KHD25150 ) .

- Windy Saddle Park, Partially shaded north-facing rocky slopes. Southeast Windy Saddle Park, lower portion of unnamed canyon on east side of Lookout Mountain, 2.28 km south southeast of the GNIS location of Golden. Tom Schweich 1246. 24 Jul 2015. ( JCOS s.n. KHD00062046 UC ) .

Cannabaceae

Celtis reticulata Torr.  (Syn: Celtis laevigata Willd. var. reticulata L. D. Benson ) Net-Leaved Hackberry. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Several small trees scattered on the hillslope. Lower east slopes of North Table Mountain, along the upper portion of the Lithic Trail and nearby portions of the North Table Loop, 3.77 km. northeast of the GNIS location of Golden Tom Schweich 1799. 8 May 2018. ( JCOS s.n. KHD00068914 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on S facing slope; in small scattered groups near base of slope. South Table Mountain, below Castle Rock. 13N 0481900E 4400200N. Loraine Yeatts 877. 21 May 1984. ( COLO00793240 KHD21805 ) .

Caprifoliaceae

Symphoricarpos occidentalis Hook.  Western Snowberry. CalPhotos. Jepson eFlora. SEINet Taxon.

Woody perennial to 50 cm., forming dense colonies in moist open swales, [spreading by long sparsely-branched rhizomes,] Twigs without lenticels, minutely hairy when young; Leaves opposite, ovate, to 7 cm. × 5 cm. wide, reduced above, thick, approaching leathery, pinnately veined, upper surface glabrous, lower few short white hairs, margin slightly wavy, slightly rolled under, sparsely curved hairy; Petioles to 7 mm.; Inflorescence axillary (and terminal?); Floral bracts triangular, 3 mm.; Flowers in dense axillary clusters, bisexual, ±radial, possibly slightly bilateral, 2 or more whorls; Corolla fused at base, tube 2-3 mm., throat with recurved hairs, lobes 5, 2.0-3.5 mm, slightly longer than tube, hairy within at level of stamen insertion, white with magenta mottling; Stamens 5, alternate, exserted or barely exserted; Filaments, 3.3-3.6 mm., tapered; Anthers versatile; Ovary inferior Pistil 1; Style exserted or barely exserted; Stigma entire; Fruit a berry, green when young, mature color and size unknown. (Described from specimen seen on Green Mountain, 2 August 2014 and Coll. No. 1252, 26-Jul-2015).

- North Table Mountain Park, Locally common. North Table Mountain. TRS: T3S R70W S21. R.J. Rondeau, wth C.A. Pague, M.A. Duff 9257. 16 Jun 1992. ( COLO00828178 ) Lowest north slopes of North Table Mountain, along the Mesa Spur Trail, 0.6 km. south of 58th Avenue, 4.6 km. north northeast of the GNIS location of Golden. Tom Schweich 1506. 22 Jul 2016. ( COLO2299717 CS EIU JCOS s.n. KHD00063946 OBI83337 ) .

- Ranson/Edwards Homestead Open Space Park, Banks of an intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 175 m. west of Plainview Road. Tom Schweich 1252. 26 Jul 2015. ( JCOS s.n. KHD00061542 UCR267465 ) Relatively moist area, but not quite a wetland. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, then 870 m. west of Plainview Road, nearing the railroad tracks at the top of the park. Tom Schweich 1285. 28 Aug 2015. ( JCOS s.n. KHD00062045 UC UCR267482 ) .

- South Table Mountain, South Table Mountain, along E-W road West of Quaker Road. 13N 0481105E 4400440N. Loraine Yeatts 752. 29 Jul 1983. ( COLO00223826 KHD19243 ) . .

Symphoricarpos rotundifolius A. Gray.  (Syn: S. oreophilus A. Gray , S. rotundifolius A. Gray var. parishii (Rydb.) Dempster , S. rotundifolius A. Gray var. rotundifolius , S. vaccinioides Rydb. ) Roundleaf Snowberry. CalPhotos. Jepson eFlora. SEINet Taxon.

Shrub, to 70 cm.; Leaves, opposite, 12 mm. × 9 mm. wide, ovate, margin entire; Inflorescence, terminal racemes on short branches; Calyx, 1.5 mm.; Corolla, tube 10 mm. + lobes 1.7 mm., color ochroleucus, few hairs near base of tube (around the style); Stamens, #5; Filaments, free 2 mm.; Ovary, inferior; Style, 3.5 mm., glabrous; Fruit, berry, white. Described from Coll. No. 1654, 1 Jun 2017.

- North Table Mountain Park, North slopes of North Table Mountain, at the base of the steepest slopes, near North Table Loop trail, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1654. 1 Jun 2017. ( CDA CS JCOS s.n. UCR ) .

- South Table Mountain, In West facing gully, locally common on sids of and in gully a lava capped mesa in the Denver Formation. South of Castle Rock. 13N 0482044E 4400232N. Loraine Yeatts 902. 6 Jun 1984. ( KHD20413 ) Locally common, against 50ft North facing, vertical, seeping cliff face a lava capped mesa in the Denver formation. Front Range, South Table Mountain. 13N 0483182E 4400996N. Loraine Yeatts 2397. 18 Jun 1990. ( KHD28282 ) .

Caryophyllaceae

Cerastium arvense L. ssp. strictum Gaudin.  (Syn: Cerastium strictum L ) Field Chickweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Common early-flowering perennial, to 20 cm.; Leaves, opposite, broadly linear, 15 mm. × 3 mm. wide, stipules absent, tufts of leaves in lower axils; Sepals free; Petals >> sepals, white, notched; Styles (4)5.

- Lippincott Property, Common early spring forb, growing with Mertensia lanceolata, Thermopsis, Prunus virginiana, and Pinus ponderosa. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, near the northern edge of the property and the Boulder County boundary, grassland in a ponderosa pine woodland, 23.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2028. 26 May 2019. ( Golden ) Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south parcel, high prairie above Rocky Flats, 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich, with Irene Weber 2021. 24 Apr 2019. ( Golden ) .

- Mount Galbraith Park, In the saddle near the top of Nightbird Gulch trail. Tom Schweich 1097. 3 May 2015. ( JCOS s.n. KHD56902 ) .

- Ranson/Edwards Homestead Open Space Park, East-facing grassy slopes. Stevens parcel immediately south of Ranson/Edwards parcel, 1.5 km south of the GNIS location of Plainvew, and 3.65 km south southwest of Rocky Flats. Tom Schweich 1327. 5 May 2016. ( COLO02348415 CS JCOS s.n. KHD00064107 ) .

- South Table Mountain, North facing mesa rim under and among dense shrub cover, occasional in local area but not found on South facing mesa slopes. South Table Mountain. 13N0483297E 4401386N. Loraine Yeatts 1199. 19 May 1985. ( COLO00076695 KHD24448 ) .

- Windy Saddle Park, Lowest slopes of Lookout Mountain, just above highest plains, western edge of Windy Saddle Park, near Lookout Mountain Road, 1.95 km. southwest of the GNIS location of Golden. Tom Schweich 1610. 13 May 2017. ( CDA JCOS s.n. KHD00065344 ) . .

Cerastium brachypodum (Engelmann ex A. Gray) B. L. Robinson.  (Syn: Cerastium nutans Raf. var. brachypodum Engelmann ex A. Gray ) Short-stalked mouse-ear chickweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Collected with Phleum pratense and Poa secunda. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2118.1 1 Jul 2019. ( Golden ) . .

Cerastium fontanum Baumgarten ssp. vulgare (Hartman) Greuter & Burdet.  Common Mouse-Ear. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Jointly owned by City of Boulder OSMP and Jefferson County Open Space, northern portion of property, sunny site on the south bank of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2072. 6 Jun 2019. ( Golden ) . .

Cerastium nutans Raf.  Nodding Chickweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, South Table Mountain, wet area near rock quarry. 13N 0484328E 4400089N. Janet L. Wingate, with Esther Witte 2360. 1 Jun 1983. ( KHD13187 ) Abundant at the head of SW facing gully with flowing water. South Table Mountain. 13N 0482818E 4400058N. Loraine Yeatts 544. 1 Jun 1983. ( KHD19240 ) South Table Mountain, in seepage below reservoir where East-West raod turns to North. 13N 0481105E 4400440N. Mary E. Edwards 430.1 1 Jun 1983. ( KHD19241 ) . .

Dianthus armeria L.  Deptford Pink. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Also collected here: Heterotheca villosa, Potentilla recta, Prunella vulgaris, and Veronica anagallis-aquatica Found at this location and numerous places downslope, and in the adjacent northwest corner of Ranson/Edwards. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2110.1 1 Jul 2019. ( Golden OBI ) .

- Ranson/Edwards Homestead Open Space Park, Several plants among fallen trunks of Ponderosa pine. Location is 35 m. west of west boundary of open space property. Tom Schweich 8/20/2015. Northwest corner of park, 1.7 mi. west on CO highway 72 from CO Highway 93, 2.2 mi. generally north on Plainview Road, then 445 m. west to the base of a east limb of a small hogback, 21.4 km. north northeast of the GNIS location of Golden, Tom Schweich 2161.1 16 Jul 2019. ( Golden ) . .

Eremogone fendleri (A. Gray) Ikonnikov.  (Syn: Arenaria fendleri A. Gray ) Fendler's Sandwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, tufted, to 30 cm.; Stem, proximal glabrous, distal short glandular hairy “peg-like hairs”; Leaves, cauline, 50 mm. × 0.5 mm. wide, linear to needle-like, erect to appressed, tip small spinulose, stipules absent; Inflorescence, open cyme; Pedicels, 3-8 mm.; Sepals, #5 distinct, 4.5-5.0 mm. × 1 mm. wide, glandular hairy; Petals, white, 5 mm., entire; Stamens, #10; Anthers, purple; Styles, #3. Described from Coll. No. 1270, 29 Jul 2015, and Coll. No. 1374, 29 May 2016.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.8 km north northeast of Golden, 1.4 miles north of CO State Highway 72 on Plainview Road, 212 m. northeast of Plainview Road. Tom Schweich 1270. 29 Jul 2015. ( JCOS s.n. KHD00060597 ) High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 310 m. north of Plainview Road. Tom Schweich 1374. 29 May 2016. ( CAS UC UCR277976 ) Mixed short grasses and forbs. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.6 mi. northerly on Plainview Road, then 470 m. southwest of the road upslope. 16 km. north northwest of the GNIS location of Golden. Tom Schweich 1411. 10 Jun 2016. ( CS EIU JCOS s.n. OBI83312 ) . .

Gypsophila elegans M. Bieb.  Showy Baby's Breath. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lookout Mountain Nature Center, Distuirbed roadside, probalbly planted with commercial wildflower mix. Jefferson County Native Center, Lookout Mountain. 13N 0478957E 4397358N. Stanley Smookler 15 Jun 1985. ( KHD21871 ) . .

Paronychia jamesii Torr. & A. Gray.  James' Nailwort. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial erect subshrub, to 15 cm.; Leaves, cauline, opposite, 10 mm., linear, pointed, stipules, 4-5 mm., papery; Inflorescence, many-flowered cyme; Sepals, #5, 2.3 mm., greenish, awn-tipped; Petals, absent. Described from Coll. No. 1263, 29 July 2015.

- North Table Mountain Park, Uncommon. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau, with C.A. Pague, M.A. Duff. 9273. 16 Jun 1992. ( COLO 00828111 ) Thin soils on top of the mesa. Top of North Table Mountain, along an old road and former powerline headed about 290 m. north to a radio tower, 2.6 km. north of the GNIS location of Golden Tom Schweich 1491. 13 Jul 2016. ( EIU JCOS s.n. KHD00063524 ) Very thin vegetation with patches of bare mesa caprock. Top of North Table Mountain, near Golden Cliffs Trail, 1.70 km. north of the GNIS location of Golden. Tom Schweich 1659. 8 Jun 2017. ( CDA UCR ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.8 km north northeast of Golden, 1.4 miles north of CO State Highway 72 on Plainview Road, 130 m. northeast of Plainview Road. Tom Schweich 1263. 29 Jul 2015. ( JCOS s.n. KHD00060469 ) .

- South Table Mountain, On lava bedrock flats near relatively high point of meas, locally abundant on lava pavement over whole mesatop. South Table Mountain. 13N 0483440E 4400436N. Loraine Yeatts 191. 20 Jul 1983. ( KHD19239 ) On lava bedrock flats near realtively high int of meas, locally abundant on lava pavement over whole top of mesatop. South Table Mountain. 13N 0483440E 4400436N. Loraine Yeatts 678. 11 Jul 1983. ( COLO00000604 KHD19238 ) . .

Pseudostellaria jamesiana (Torr.) W. A. Weber & R. L. Hartm.  (Syn: Stellaria jamesiana Torr. ) Tuber Starwort. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Also collected here: Osmorhiza depauperata and Woodsia oregana. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south bank of Bull Gulch, 23.0 km. north northwest of the GNIS location of Golden. Tom Schweich 2069.2 6 Jun 2019. ( 68Golden Error 14.6(b)-7c 70Golden Error 14.6(b)-7c ) .

- Mount Falcon Park, USA, Colorado, Jefferson County, Mount Falcon Park. Berta Anderson 1657. 21 Jun 1979. ( KHD22682 ) . .

Saponaria officinalis L.  Bouncingbet. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Colorado Noxious Weed List B. West side of North Table Mountain, beside the former quarry road now forming a part of North Table Loop, 2.8 km. north of the GNIS location of Golden. Tom Schweich 1743. 15 Aug 2017. ( JCOS s.n. KHD00065358 ) .

- Ranson/Edwards Homestead Open Space Park, Colorado Noxious Weed List B. In the ditch beside Plainview Road, 1.7 mi. west on CO Highway 72 from CO Highway 93, then 1.3 mi. generally north on Plainview Road, 15.45 km. north northwest of the GNIS location of Golden. Tom Schweich 1983. 20 Jul 2018. ( JCOS s.n. KHD00068922 ) . .

Silene L.  Catchfly. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, In dense vegetation at edge of old road. Flood plain of Coal Creek, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. generally north on Plainview Road, then 345 m. generally east on an old road leading to Coal Creek; 14.7 km. north northwest of the GNIS location of Golden. Tom Schweich 1465. 27 Jun 2016. . .

Silene antirrhina L.  Sleepy Catchfly. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 60 cm.; Stem, proximal finely pubescent, distal glabrous, distal internodes frequently glutinous (a.k.a., “sticky band below upper leaves”); Leaves, basal, withered, cauline, opposite, connate proximally, 45 mm. × 8 mm. wide, oblanceolate, reduced above, margin ciliate; Inflorescence, cymose; Calyx, 8 mm. × 3.7 mm. fused; Petals, white to pink, barely exserted from calyx, withered and withdrawn after drying; Styles, #3. (Described from Coll. No. 1888, 28 May 2018.)

- South Table Mountain, Juncus interior A lava capped mesa in the Denver formation. occasional, Front Range, S.Table Mt. at base of S facing slope near seep. 13N 0483440E 4400436N. Loraine Yeatts 3030. 2 Jul 1991. ( KHD35616 ) . .

Silene csereii Baumg.  Balkan Catchfly. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, erect, to 50 cm.; Stem, simple, branched only in the inflorescence, without dark or sticky band; Inflorescence, glabrous; Calyx, tube 9 mm. × 8 mm. across + lobes 2 mm., indented at base around peduncle, glabrous, veins obscure, reticulations faint; Corolla, white to cream; Stamens, #10, exserted 10 mm.; Filaments, white to purple-tinged distally; Seeds, unknown. (Described from Coll. No. 1922, 3 June 2018.)

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 mi. west on CO Highway 72, Coal Creek Canyon Road, from CO Highway 93, 0.8 mi. generally north on Plainview Road, then 250 m. a little south of east on a gasline access road to a terrace overlooking Coal Creek. Tom Schweich 1922. 3 Jun 2018. ( JCOS s.n. KHD00068921 OBI170745 ) . .

Silene latifolia Poir.  (Syn: Lychnis alba Mill. , Melandrium dioicum (L.) Cosson & Germain ) Bladder Campion. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, In a thicket, primarily of Prunus virginiana, along a break in slope. Also collected in these thickets: Polygonum douglasii, Cynoglossum officinale, and Arctium minus. High plains above Rocky Flats, west 1.7 mi. on CO Hwy 72 from CO Hwy 93, generally north 1.0 mi. on Plainview Road, then 400 m. east to a small break in slope, 19.6 km. north northeast of the GNIS location of Golden. Tom Schweich 2127. 6 Jul 2019. ( Golden OBI ) . .

Silene vulgaris (Moench) Garcke.  Maidens Tears. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, erect, to 55 cm., generally glabrous throughout; Stem, lacking dark sticky band, most, i.e., 7/8 stems, simple unbranched; Stipules, 0; Leaves, basal, unknown, cauline, opposite, 44 mm. × 6-7 mm. wide, sessile, bases connate; Calyx, tube 8 mm. × 5.5 mm. wide + lobes 2 mm. somewhat inflated, many green veins, not particularly prominent; indented around peduncle (when pressed and dry); Corolla, 13 mm., limb 6 mm., white; Stamens, #10, exserted; Filaments, white (definitely not purple); Seeds, 1 mm., brown, papillate. (Described from Coll. No. 1463, 27 June 2016).

- Ranson/Edwards Homestead Open Space Park, Mixed grasses and forbs beside the old road, on the accessible side of a gate that prevents cows from going down to Coal Creek. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. north on Plainview Road, then 250 m. east on old ranch road; 15.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1463. 27 Jun 2016. ( CAS CS JCOS s.n. KHD00063540 UC ) .

Chenopodiaceae

Atriplex canescens (Pursh.) Nutt.  Four-wing Saltbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Foothill shrub; dry hillside with Cercocarpus, Rhus trilobata, and Stipa. Arapaho National Forest: Golden South Table Mountain. Harley A. Orahood 24 Jun 1981. ( RM451862 ) SW facing steep slope below cliff forming edge of mesatop, occassional. South Table Mountain. 13N 0482030E 4400462N. Peter G. Root 8312. 1 Jul 1983. ( KHD20624 ) Lowest portion of Lubahn Trail. Tom Schweich 10/19/2019. . .

Chenopodium album L.  Lambsquarters. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Also collected nearby: Opuntia macrorhiza, Potentilla pensylvanica, and Opuntia macrorhiza. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.16 km. north northeast of the GNIS location of Golden. Tom Schweich 2138. 11 Jul 2019. ( Golden OBI ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, common. South Table Mountain. Along Quaker Road near gate. 13N 0484293E 4399631N. Loraine Yeatts 681. 11 Jul 1983. ( KHD19695 ) . .

Chenopodium berlandieri Moq.  Pitseed Goosefoot. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, occasional. South Table Mountain. Mesa top S of quarry. 13 0484293E 4399631N. Loraine Yeatts 1071. 18 Sep 1984. ( COLO 00234807 KHD20727 ) . [ COLO392934 is determined C. desiccatum A. Nelson ] .

Dysphania botrys (L.) Mosyakin & Clemants.  (Syn: Chenopodium b. L , Teloxys botrys (L.) Weber ) Jerusalem Oak Goosefoot. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, In gravel along roadside, occasional. South Table Mountain, along the edge of road N of gate. 13N 0484293E 4399631N. Loraine Yeatts 823. 29 Aug 1983. ( COLO00242123 KHD19697 ) . .

Salsola tragus L.  (Syn: S. australis R. Brown , S. iberica (Sennen & Pau) Botschantzev ex Czerepanov , S. kali , S. kali var. tenuifolia Tausch. , S. pestifer Nels. ) Tumbleweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, widespread and abundant along hardpacked clay roads. South Table Mountain, Along E-W Road, West of gate at the head of Quaker Road. 13N 0484293E 4399631N. Loraine Yeatts 838. 9 Sep 1983. ( COLO00240283 KHD19696 ) .

Cleomaceae

Polanisia dodecandra (Linnaeus) de Candolle ssp. trachysperma (Torrey & A. Gray) H. H. Iltis.  (Syn: Polanisia trachysperma Torrey & A. Gray ) Sandyseed Clammyweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Petals white, anthers red; ocassional locally. On Steep boulder strewn slope above Crataegus erythropoda stand with Tragia somosa, Mentzelia nuda, Ambrosia psilostachya. South Table Mt. a lava capped mesa in the Denver formation. 13N 0483440E 4400436N. Loraine Yeatts 2210. 3 Aug 1989. ( COLO00220590 KHD27134 ) .

Convolvulaceae

Convolvulus arvensis L.  Field Bindweed. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Very common trailing perennial. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau, with C.A. Pague, M.A. Duff 9272. 16 Jun 1992. ( COLO00828103 ) .

- Ranson/Edwards Homestead Open Space Park, Thinly vegetated rocky alluvial terrace. Colorado Noxious Weed List C. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 60 m. west of Plainview Road. Tom Schweich 1220. 16 Jul 2015. ( JCOS s.n. KHD00062144 UC UCR267687 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, on S facing slope below local meas high point, abundant, widespread, weedy on disturbed sites and long mesa to roads. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 629. 3 Jul 1983. ( COLO00249425 KHD19694 ) . .

Evolvulus nuttallianus Roem. & Schult.  Shaggy Dwarf Morning Glory. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, South Table Mountain, On S facing slope above mesa high point among lava boulders. 13N 0484293E 4399631N. Loraine Yeatts 630. 3 Jul 1983. ( COLO00250324 KHD19704 ) .

Cornaceae

Cornus sericea L.  (Syn: Swida sericea (L.) Holub. ) Creek Dogwood. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, shrubs against base of N facing 50ft vertical cliff in damp soil below seep. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 2233. 8 May 1990. ( KHD28280 ) A lava capped mesa in the Denver Formation, shrubs against base of N facing 50ft vertical cliff in damp soil below seep. South Table Mountain, Front Range. 13N 0484293E 4399631N. Loraine Yeatts 2393. 18 Jun 1990. ( COLO00253757 KHD28281 ) .

Crassulaceae

Crassula aquatica (L.) Schoenl.  Water Pygmy Weed. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 22 mm.; Stem, rooting, ascending; Leaves, cauline, opposite, bases conjoined, 4 mm. × 0.5 mm. wide; Flowers, borne singly in axils; Petals, #4, 1 mm. × 1.2 mm. wide; Seeds, #12, 0.4 mm., oblong, lines longitudinal. Described from Coll. No. 1689, 28 June 2017.

- Ranson/Edwards Homestead Open Space Park, Muddy flat with sheet flow water. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. Tom Schweich 1689. 28 Jun 2017. ( KHD00065580 ) On a terrace overlooking Coal Creek, in still water that has been diverted to this terrace from a nearby ephemeral stream. High plains above Rocky Flats, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.1 mi. generally north on Plainview Road, then 410 m. east northeast, 15.50 km. north northwest of the GNIS location of Golden. Tom Schweich 1937. 14 Jun 2018. ( JCOS s.n. ) . .

Sedum lanceolatum Torr.  (Syn: Amerosedum lanceolatum (Torr.) A. Löve & D. Löve ) Spearleaf Stonecrop. CalPhotos. Jepson eFlora. SEINet Taxon.

Type collected by Edwin James on the Long Expedition, described by Torrey, 1827.

- Lippincott Property, Deep forest duff in ponderosa pine woodland, with Collomia linearis, Eriogonum umbellatum, Lappula occidentalis, and Campanula rotundifolia. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest corner near the railroad tracks, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2152. 13 Jul 2019. ( Golden ) .

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. J. Reseigh 9. 2 Jun 2000. ( CS80222 ) .

- Ranson/Edwards Homestead Open Space Park, North-facing dry alluvial slope. 1.7 mi. west on CO Highway 72 Coal Creek Canyon Roaf from CO Highway 93, 1 mi. generally north on Plainview Road, then 290 m. a little south of east to a terrace overlooking Coal Creek. Tom Schweich 1919. 3 Jun 2018. ( JCOS s.n. KHD00069198 OBI124844 ) .

- South Table Mountain, On n. facing rocks; uncommon. S. Table Mt., a lava capped mesa in the Denver Formation; in 2nd stream gully N of quarry on N. facing rocks. UTM: 840006. Peter G. Root 853. 9 May 1985. ( COLO00254169 ) . .

Sedum stenopetalum Pursh.  Wormleaf Stonecrop. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, uncommon, only place seen on mesa, at base of N facing slope at head of gully. South Table Mountain, at the head of gully overlooking Rolling Hills Country Club. 13N 0484618E 4400246N. Loraine Yeatts 1082. 18 Sep 1984. ( KHD20729 ) A lava capped mesa in the Denver Formation, in crevices and on bedrock of N facing rimrock overlooking steep gully, occasional in local area but not found on any S facing slopes on mesa. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 2003. 30 May 1985. ( COLO00254177 KHD24427 ) [ COLO428407 is determined S. lanceolatum rather than S. stenopetalum. ] .

Elaeagnaceae

Elaeagnus angustifolia L.  Russian Olive. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; in running water, uncommon. South Table Mountain; at head of NE facing gully overlooking Rolling Hills Country Club. 13N 0484293E 4399631N. Loraine Yeatts 1076. 18 Sep 1984. ( COLO00297259 KHD20858 ) .

Ericaceae

Pterospora andromedea Nutt.  Woodland Pinedrops. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Deep forest duff in Ponderosa Pine forest. Tom Schweich 5/26/2019. Tom Schweich 7/13/2019. .

Euphorbiaceae

Chamaesyce fendleri (Torr. & A.Gray) Small.  (Syn: Euphorbia fendleri Torr. & A. Gray ) Fendler's Sandmat. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; on E facing slope of Jefferson County Open Space land in volcanic soil. South Table Mountain. 13N 0483017E 4400533N. Mary E. Edwards 501. 17 Jul 1983. ( KHD21246 ) . .

Chamaesyce glyptosperma (Engelm.) Small.  Ribseed Sand Mat. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Top of North Table Mountain, near southern edge, 330 m. east of the USBR monument designated “North Table,” 1.64 km. north northeast of the GNIS location of Golden. Tom Schweich 1550.5 1 Sep 2016. ( JCOS s.n. KHD00063968 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; occasional on bare clay soil of mesatop. South Table Mountain. 13N 0482045E 4400439N. Loraine Yeatts 1087. 18 Sep 1984. ( COLO 00304329 KHD20731 ) . .

Chamaesyce serpyllifolia (Pers.) Small.  (=Euphorbia serpyllifolia Pers) Thymeleaf Sandmat. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Collected with: Salvia reflexa, Fallopia convolvulus and Prunus cf. P. pumila var. besseyi. High plains above Rocky Flats, approximate center of parcel, in a gravel bar on west side of the road, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, 19.9 km. north northwest of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2228.2 10 Sep 2019. ( Golden ) . .

Euphorbia brachycera Engelm.  (Syn: Tithymalus brachyceras (Engelm.) Small ) Horned Spurge. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, South Table Mountain, on mesatop along road to Castle Rock. 13E 0482045E 4400489N. Loraine Yeatts 489. 16 May 1983. ( KHD20702 ) E facing dry slope, relativel common S Table Mt. Mary E. Edwards 420. 1 Jun 1983. ( COLO00306910 CS21503 ) . .

Euphorbia dentata Michx.  (Syn: Euphorbia dentata Michx. var. dentata , Pointsettia dentata (Michx.) Klotzsch & Garcke ) Toothed Spurge. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, disturbed area by road. South Table Mountain Road end of Quaker Street. 13N 0484211E 4399040N. Janet L. Wingate 2718. 30 Aug 1983. ( KHD19611 ) A lava capped mesa in the Denver Formation, patches of several plants. South Table Mountain, along edge of Quaker Road. 13N 0484211E 4400468N. Loraine Yeatts 814. 29 Aug 1983. ( COLO00306324 KHD20860 ) . .

Euphorbia esula L.  Leafy Spurge. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- Clear Creek Canyon Park, Colonizing a former quarry road, southeast-facing side of the canyon, just inside the mouth of Clear Creek Canyon, foothills of Rocky Mountain Front Range, 2.16 km west of the GNIS location of Golden. Tom Schweich 1795. 27 Apr 2018. ( JCOS s.n. UCR ) .

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. J. Reseigh 18. 2 Jun 2000. ( CS80214 ) .

- North Table Mountain Park, Tom Schweich 7/13/2016. Colorado Noxious Weed List B. Northwest section of North Table Mountain, on a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.25 km. north of the GNIS location of Golden. Tom Schweich 1657. 5 Jun 2017. ( CDA CS JCOS s.n. KHD00065397 ) Western slope of North Table Mountain, just below a break in slope formed by the lowest basalt flow embedded in the Denver Formation, 3.1 km. north of the GNIS location of Golden. Tom Schweich 1733. 15 Aug 2017. ( COLO02347987 Golden JCOS s.n. ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, S facing slope. One plant. South Table Mountain, Front Range. Along road in 1st gully W of Quaker Road. 13N 0484816E 4398812N. Loraine Yeatts 1411. 18 May 1987. ( KHD25146 ) A lava capped mesa in the Denver formation; grassy meadow on gentle slope; with Artemisia ludoviciana, Ambrosia psilostachya var. coronipifolia, Melilotus alba, immature chenopod. Front Range, S. Table Mt., along old road ca ¼ mi. S. of main road to Castle Rock. UTM: 83850E 99700N. Loraine Yeatts 3091. 10 Aug 1991. ( COLO00307744 ) . .

Euphorbia marginata Pursh.  (Syn: Agaloma marginata (Pursh) A. Löve & D. Löve ) Snow on the Mountain. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Along edge of road, occasional, in gravel. South Table Mountain, along edge of Castle Rock road. 13N 0482476E 4400373N. Loraine Yeatts 746. 27 Jul 1983. ( COLO00302703 KHD20862 ) . .

Euphorbia myrsinites L.  (Syn: Tithymalus myrsinites (L.) Hill ) Myrtle Spurge. Weed: CO DofA, List: A. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Rooted in very thin soil, or in cracks of basalt flow capping the mesa. Colorado Noxious Weed List A. Top of mesa, near southwest edge, 1.55 km north of the GNIS location of Golden. Tom Schweich 1323. 4 May 2016. ( CAS CDA CS JCOS s.n. KHD00063932 OBI83163 UC UCR277965 ) . .

Euphorbia spathulata Lam.  (Syn: Tithymalus spathulata (Lam.) W. A. Weber ) Warty Spurge, Spoonleaf Spurge. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, tap-rooted, to 25 cm., glabrous throughout; Leaves, cauline alternate, 26 mm. × 9 mm. wide, spatulate, toothed; Inflorescence, umbellate, flower a cyathium; Capsules, 2.5 mm. × 2.8 mm. wide, warty-tuberculate. Not listed as a noxious weed. (Described from Coll. No. 1388, 1 June 2016.)

- North Table Mountain Park, Not listed as a noxious weed. Northwest side of North Table Mountain, southwest-facing slope above canyon, about 75 m. west of the underground water tank and 160 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. Tom Schweich 1388. 1 Jun 2016. ( JCOS s.n. KHD00063957 UC UCR277979 ) .

- South Table Mountain, South Table Mountain, below Castle Rock. 13N 0482071E 4400182N. Loraine Yeatts 1194. 13 May 1985. ( COLO00307405 KHD21726 ) . .

Tragia ramosa Torr.  Branched Noseburn. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Growing among loose rocks at base of rim. Just below the southwest rim of North Table Mountain, 1.75 Km north of the GNIS location of Golden. Tom Schweich 1277. 30 Jul 2015. ( JCOS s.n. KHD00061515 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, dry S facing slope. South Table Mountain. 13N 0484293E 4399631N. Janet L. Wingate 2531. 12 Jul 1983. ( COLO00307884 KHD19315 ) [ COLO402562 is determined Tragia ramosa Torr., whereas KHD19315 is determined T. urticifolia Michx. ] Weedy inconspicuous plants to 1 high with bristly foilage covered with stinging hairs On S facing slope below mesa edge. USA, Colorado, Jefferson County, South Table Moutain, just W of Quaker Road. Loraine Yeatts 602. 27 Jun 1983. ( KHD20700 ) Dry soil. S Table Mt. Above Jefferson Co. Open Space land on mesa rim. Mary E. Edwards 502. 17 Jul 1983. ( CS79426 CS81501 CS81502 ) .

Fabaceae

Amorpha fruticosa L.  False Indigo. CalPhotos. Jepson eFlora. SEINet Taxon.

Woody perennial shrub, 1.5-2 m., erect; Stem, pubescent, hairs, simple, basifixed; Leaves, alternate, compound, stipules, free, 3 mm., petiole, 15 mm., leaflets, #13-15, 25-32 mm. × 9-16 mm. wide, elliptic-ovate, mid-rib extended as a short slender mucro, eglandular, short soft hairy, sparse adaxially, less sparse abaxially; Inflorescence, raceme, 60 mm. × 18 mm. wide, many flowers, pedicels, 1.5 mm.; Calyx, tube 2.5 mm. + lobes 0.7 mm., increasingly pubescent distally, few gland-dotted distally; Flowers, zygomorphic, banner, 4-6 mm., purple, not reflexed, back, glabrous, wings, absent, keel, absent; Fruit, unknown (immature). (Described from Coll. No. 1464, 27 June 2016, and Coll. No. 1940, 14 June 2018).

- Ranson/Edwards Homestead Open Space Park, Xeric mountain foothills with alluvial water flow. Associated Species: Crataegus erythropoda, Prunus virginiana, Bouteloua hirsute, Symphoricarpos rotundifolius, Prunus americana. United States, Colorado, Jefferson, 1 mile north on Plainvierw Road, north of Hwy 72 and Golden, CO and 1 1.2 miles west of Hwy 93. Boulder City Open Space and Mountain Parks land along the Coal Creek creek bed. Denise Wilson 7 Oct 2011. ( CHIC16921 ) Habitat: High plains seasonally dry creek bed. Associated Species: Populus deltoides, Salix sp., Symphoricarpos occidentalis, Prunus virginiana, Hypericum perforatium, Rhus trilobata, Rosa woodsii, Elymus canadensis, Heterotheca villosa, Artemisia frigida, A. campestris United States, Colorado, Jefferson, Take Hwy 93 north 8 miles from Golden, CO, take Hwy 72 west for 1.7 miles to Plainview Rd; turn right (north) cross bridge, drive 1 mile and park. Plants are in the Coal Creek dry creek bed to the east. Denise Wilson 24 Nov 2012. ( CHIC17891 ) Growing in roadside ditch. Tom Schweich 9/8/2016. Lining a small ephemeral stream. Tom Schweich 7/24/2016. In dense vegetation of mostly willows on the edge of an abandoned channel of Coal Creek. Flood plain of Coal Creek, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 0.9 mi. generally north on Plainview Road, then 350 m. generally east on an old road leading to Coal Creek; 14.7 km. north northwest of the GNIS location of Golden. Tom Schweich 1464. 27 Jun 2016. ( CAS EIU022394 JCOS s.n. KHD00063619 OBI83327 ) Shrubs growing on bank of small ephemeral stream that was flowing at the time of this collection. High plains above Rocky Flats, 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.0 mi. generally north on Plainview Road, then 260 m. east, 14.90 km. north northwest of the GNIS location of Golden. Tom Schweich 1940. 14 Jun 2018. ( COLO02348209 Golden ) . .

Amorpha nana Nutt.  Dwarf False Indigo. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Habitat: In a recent burn area. Locally common. USA, Colorado, Jefferson County, Ranson/Edwards, JEFCO open space property. N. of gravel road as it curves W and uphill. Verbatim Coordinates: NAD83 13 0476478E 4416476N, Eldorado Springs quad T2S R70W SEC7. D. Hazlett, Pam Smith, and Rich Scully 13965. 15 Sep 2011. ( KHD52809 ) Several plants. Tom Schweich 9/8/2016. Tom Schweich 9/8/2016. Tom Schweich 8/27/2019. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 180 m. northwest; 16.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1513. 24 Jul 2016. ( JCOS s.n. KHD00063626 ) . .

Astragalus agrestis Douglas ex G. Don.  Purple Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1398, 8 June 2016, characters observed: Perennial herb, to 15 cm., caulescent, basifixed straight appressed hairy throughout; Leaves, cauline, alternate, stipules, 5 mm., connate opposite petiole, compound, odd-pinnate, leaflets, #13, 8 mm. × 2 mm. wide, straight hairy, tip round; Inflorescence, upright ovoid cluster; Calyx, tube 4.5 mm. + lobes 3.5 mm. = 8 mm., mix of white and black hairs; Flowers, zygomorphic, 11 mm., blue-purple; Style, 7 mm., persistent; Legume, immature, 5 mm. × 1.7 mm. wide, stipe very short (0.4 mm.?), dense long straight soft hairy (Described from Coll. No. 1398, 8 June 2016).

- North Table Mountain Park, Small, 1 dm., infl. Crowded, fruit ovoid pods, hairy. Tom Schweich 7/30/2015. Small, 1 dm., infl. Crowded, fruit ovoid pods, hairy. Tom Schweich 7/30/2015. Growing in short grasses, near head of drainage where a little more soil has developed. Between North Table Loop and Golden Cliffs Trail, near their intersection. Top of North Table Mountain, southwest sector, 1.75 km. north of the GNIS location of Golden. Tom Schweich 1402. 8 Jun 2016. ( CAS COLO02348373 CS EIU JCOS s.n. OBI83198 ) Found among short grasses and forbs in all areas of North Table Mountain. Lowest north slopes of North Table Mountain, on a small flat that appears to be a landslide run-out, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1810. 10 May 2018. ( JCOS s.n. ) .

- Ranson/Edwards Homestead Open Space Park, North-facing slope with grasses and ponderosa pines. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 2.4 mi. generally north on Plainview Road, then 130 m. southeast across a small drainage, 15.95 km. north northwest of the GNIS location of Golden. Tom Schweich 1422. 10 Jun 2016. ( COLO02347839 CS JCOS s.n. KHD00063608 UC ) .

- South Table Mountain, Plants low, forming patches. Infloresescence globose, corolla: pinkish purple. South Table Mountain, just N of the junction of Quaker Road and Golden Hills Road. 13N 0484203E 4398839N. Loraine Yeatts 595. 27 Jun 1983. ( KHD20838 ) Lava-capped mesa, Denver Formation. South Table Mountain, gently sloping mesatop. Mary E. Edwards 423. 1 Jun 1983. ( COLO00310706 CS81668 ) . .

Astragalus crassicarpus Nutt.  Groundplum Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 15 cm., Leaves, compound, stipules free, petiole, 15 mm., blade, 85 mm. × 22 mm. wide, leaflets, #23, 11 mm. × 3.5 mm. wide, terminal leaflet, not a tendril, hairs, simple, appressed, straight, Calyx, tube 8 mm. + lobes 3 mm., hairs, simple, some light and some dark, Flower, zygomorphic, white to blue, banner, 24 mm., glabrous, wings, claw, 10 mm., blade, 10 mm., keel, 20 mm., tip, obtuse; Style, persistent, 8 mm.; Fruit, 17 mm. × 7.3 mm. wide, oblong, glabrous (Described from Coll. No. 1851, 18 May 2018).

- North Table Mountain Park, East side of North Table Mountain, near the Easley Road trailhead, on an old abandoned road just above North Table Loop. Tom Schweich 1624. 22 May 2017. ( JCOS s.n. ) .

- South Table Mountain, A lava capped mesa in the Denver Formation. S. facing slope. Relatively common. S. Table Mt., on S. facing slope below mesa edge W. of Quaker Rd. UTM: 842992 Loraine Yeatts 493. 16 May 1983. ( COLO00315499 ) A lava capped mesa in the Denver Formation, on mesa rim among lava boulders above S facing slope, relatively common and widespread on mesa top and slopes. South Table Mountain, W of Quaker Road. 13N 0483967E 4400714N. Loraine Yeatts 507. 24 May 1983. ( KHD20863 ) . .

Astragalus drummondii Dougl. ex Hook.  Drummond's Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 35 cm., caulescent; Stem, rachis, abaxial leaf surfaces, and calyx spreading hairy, hairs basifixed; Leaves, cauline, compound, odd-pinnate, stipules, 9 mm., free, entire, leaflets, 23-27, 19 mm. × 5.5 mm. wide, wavy hairy abaxially and marginally, ±glabrous adaxially; Calyx, tube 6 mm. + lobes 3 mm. = 9 mm., green at base to cream color at tube and lobes, few dark wavy hairs, persistent; Corolla, 17 mm., color cream, banner, 17 mm., wings, claw 6 mm. + blade 9 mm., tip obtuse, keel, 14 mm., tip purple, Ovary, 9 mm.; Style, 4 mm., glabrous, persistent; Fruit, stalked 12 mm. + body 26 mm. × 4 mm. wide, pendant, smooth, glabrous, not inflated. Described from Coll. No. 1141, 9 Jun 2015.

- North Table Mountain Park, Trailside in grass and small brush, near the intersection of the Mesa Top Trail and North Table Loop, eastern slopes of North Table Mountain, 4.1 km northeast of the GNIS location of Golden. Tom Schweich 1141. 9 Jun 2015. ( JCOS s.n. KHD56837 UCR265717 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, on mesa rim above S facing slope among lava boulders, very abundant and widespread on mesa top and slopes. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 506. 24 May 1983. ( COLO 00316232 KANU313710 KHD20842 ) . .

Astragalus eucosmus B. L. Rob.  Elegant Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1415, 10 June 2016, characters observed: Perennial, caulescent, to 40 cm., hairs basifixed throughout; Stem, not flexuous or zigzag distally, light brown above, purplish at base; Stipules, 6 mm., connate opposite petiole proximally; Leaves, cauline, alternate, compound, leaflets, #15, 15 mm. × 3.3 mm. wide, glabrous adaxially, hairy abaxially; Inflorescence, axillary racemes, flowers, #21; Calyx, tubes 3 mm. + lobes 1 mm. = 4 mm.; Flowers, spreading, 10 mm., ochroleucous proximally, blue distally, banner, 9.5 mm., wings, 8 mm., keel, 6 mm.; Fruit, unknown, immature, developing short stipitate and hairy (Described from Coll. No. 1415, 10 June 2016).

- Ranson/Edwards Homestead Open Space Park, Open gentle slope with grasses and forbs, lightly grazed in 2016. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 455 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1415. 10 Jun 2016. ( COLO02348324 CS JCOS s.n. KHD00063613 ) . .

Astragalus flexuosus G. Don.  Flexible Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, decumbent to ascending stems, to 30-50 cm., not vine-like, caulescent, appressed basifixed hairy throughout; Leaves, cauline, compound, odd pinnate, leaflets ±15-17, terminal leaflet not modified into tendril, stipules, entire, not lobed at base, not connate (slightly) connate on side opposite to petiole, leaflets, 11-12 mm. × 2-4 mm. wide, oblong, notched, terminal leaflet 7 mm. < uppermost pair 8 mm.; Inflorescence, raceme, arising from axils; Calyx, 4 mm., tube >> lobes,not inflated in fruit; Flower, zygomorphic, banner, 9 mm., wings (2), 9 mm., keel, 5.5 mm., <wings, not beaked; Style, 3 mm., glabrous, persistent; Fruit, 9 mm. × 4.5 mm., substipitate 1 mm., not inflated, compression lateral sparse appressed hairs. Described from Coll. No. 1148, 15 Jun 2015, and Coll. No. 1384, 1 June 2016.

- North Table Mountain Park, some seed pods collected. Tom Schweich 7/11/2019. Middle north slopes of North Table Mountain, above (south of) the North Table Loop trail, 3.9 km north northeast of the GNIS location of Golden. Tom Schweich 1211. 13 Jul 2015. ( JCOS s.n. KHD00060598 UC ) In grass and forbs on a small ridge. Northwest base of North Table Mountain, about 120 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1384. 1 Jun 2016. ( COLO02348381 CS OBI83205 ) East side of North Table Mountain, near the Easley Road trailhead, on an old abanconed road just above North Table Loop, 3.7 km. northeast of the GNIS location of Golden. Tom Schweich 1625. 22 May 2017. ( Golden JCOS s.n. ) Moderately disturbed mixed grass prairie. Lowest slopes of North Table Mountain, along the Mesa Spur Trail, below power line, 460 m. south of W. 58th Avenue, 4.77 km. north northeast of the GNIS location of Golden Tom Schweich 1647. 1 Jun 2017. ( CDA JCOS s.n. UCR ) One crown with stems emerging from an area 15 cm. diameter, small magenta flowers. Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, north from North Table Loop in the direction of Ramstetter Reservoir, 3.76 km. north of the GNIS location of Golden. Tom Schweich 1878. 24 May 2018. ( Golden ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, on mesa top in tall grass, widespread and abundant. South Table Mountain.13N 0484293E 4399631N. Loraine Yeatts 588. 16 Jun 1983. ( KHD20839 ) A lava capped mesa in the Denver Formation. Rather inconspicuous but widespread & abundant. S. Table Mt. On S. facing slope below mesa rim just W. of Quaker Rd. UTM: 842992 Loraine Yeatts 627. 3 Jul 1983. ( COLO00317917 ) . .

Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S. L. Welsh.  (Syn: Astragalus adsurgens Pall. ) Prairie Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., caulescent, hairs dolabriform; Leaves, cauline, compound, leaflets, #17, 17 mm. × 5 mm. wide, elliptic, tip cuspidate, terminal leaflet jointed to rachis; Calyx, tube 6 mm. + lobes 5 mm. = 11 mm.; Flowers, 14 mm., whitish; Legume, more erect than flower (Described from Coll. No. 1400, 8 June 2016).

- South Table Mountain, A lava capped mesa in the Denver Formation, forming large, showy, rounded clumps on mesa rim and S facing slope below. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 599. 27 Jun 1984. ( COLO00309450 KHD20837 ) A lava capped mesa in the Denver Formation, in showy patch. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 600. 27 Jun 1984. ( COLO00309443 KHD20836 ) . .

Astragalus shortianus Torr. & A.Gray.  Short's Milkvetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 10 cm., acaulescent; Leaves, compound, petiole, 50 mm., blade, 90 mm. × 37 mm. wide, leaflets, #13, 17 mm. × 10 mm. wide, terminal leaflet not a tendril, petiole, rachis, and leaflets with appressed stiff straight hairs; Inflorescence, not an umbel; Calyx, tube 6 mm. + lobes 4 mm., hairs similar; Flower, zygomorphic, banner 22 mm., wings 18 mm., clawed, keel, 22 mm., tip obtuse; Fruit, 35 mm. × 10 mm. wide, falcate, appressed stiff basifixed straight hairs (Described from Coll. No. 1826, 16 May 2018).

- North Table Mountain Park, On top of the flat surface of a spoils pile from the basalt quarry to the west. Plant fragments which are consistent with A. shortianus. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1405. 8 Jun 2016. .

- South Table Mountain, S Table Mt., along mesatop road to Castle Rock. Loraine Yeatts 41. 11 May 1984. ( CS81500 ) A lava capped mesa in the Denver Formation, on S facing slope, realtively common, widespread. South Table Mountain.13N 0484293E 4399631N. Loraine Yeatts 538. 1 Jun 1983. ( COLO00327858 KHD20841 ) A lava capped mesa in the Denver Formation, mesatop meadow in tall grass realtively common, widespread. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 586. 16 Jun 1983. ( KHD20840 ) . .

Colutea arborescens L.  Bladder Senna. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial shrub, to 2 m., woody below; Stem erect, unarmed; Leaves compound, odd-pinnate (with terminal leaflet); Leaflets, 11, 16 mm. × 12 mm. wide, notched at tip, glabrous above, sparsely appressed hairy below; Inflorescence a raceme, axillary, 9± flowers; Calyx, 5-merous, 5 mm. × 6 mm. dia., appressed hairy; Flowers, 19 mm., yellow, with dark markings; Banner, 10 mm.; Wings, 10 mm. × 4 mm., reduced in comparison to Lupinus; Keel, fully enclosing stamens and pistil, glabrous; Stamens, 10; Filaments, 9 fused, 1 free; Style, recurved; Fruit, inflated, bladder-like, 50 mm. × 22 mm., walls papery, color reddish fading to brown, base stalk-like; Seeds, reniform, flattened, 6 mm. × 4 mm. × 2 mm., brown, surface smooth; native to southern Europe (Described from Coll. No. 1066, 6 Oct 2014).

- South Table Mountain, A lava capped mesa in the Denver Formation, 1/2 dozen shrubs growing on a steep bank at the base of the mountain. South Table Mountain, W side near 16th Street entrance. 13N 0481694E 4400317N. Stanley Smookler 41. 13 Jun 1992. ( KHD29566 ) . .

Dalea candida Willd.  White Prairie Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Middle north slopes of North Table Mountain, above (south of) the North Table Loop trail, 3.9 km north northeast of the GNIS location of Golden. Tom Schweich 1212. 13 Jul 2015. ( JCOS s.n. KHD00060599 UCR267683 ) .

- South Table Mountain, On S facing slope below mesa rim, common and widespread South Table Mountain, on S facing slope below mesa rim of Quaker Road. 13N 0484200E 4399200N. Loraine Yeatts 628. 3 Jul 1983. ( KHD20829 ) . .

Dalea purpurea Vent.  Purple Prairie Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Edge of brush across roadside gulley. Accidental collections with this one: Aegilops cylindrica and Alyssum simplex. Along the Mesa Top Trail (radio tower access road), 135 m. northwest of the tower, 3.3 km. north of the GNIS location of Golden. Tom Schweich 1501. 13 Jul 2016. ( JCOS s.n. KHD00063627 OBI83340 ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 7/26/2015. . .

Glycyrrhiza lepidota Pursh.  American Licorice. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Thick vegetation along intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 67 m. west of Plainview Road. Tom Schweich 1222. 16 Jul 2015. ( CAS JCOS s.n. KHD00060601 OBI83189 UC UCR267454 ) .

- South Table Mountain, South Table Mountain, along Quaker Road. 13N 0484233E 4400610N. Loraine Yeatts 742. 27 Jul 1983. ( KHD20930 ) . .

Lathyrus eucosmus Butters & H. St. John.  Bush Vetchling. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; at base of E. facing short gully. Alpine ridge; tundra and boulder fields; full sun and wind exposure., South Table Mountain;, At base of E. facing short gully on W. side of Quaker Road. 13N 0484343E 4400376N. Loraine Yeatts 590. 27 Jun 1983. ( COLO00334581 KHD20926 ) On W facing slope S of Castle Rock; abundant and widespread. S Table Mt. Along trail. Mary E. Edwards 428. 1 Jun 1983. ( CS80061 ) . .

Lathyrus lanszwertii Kellogg var. leucanthus (Rydb.)Dorn.  (Syn: Lathyrus leucanthus Rydb. ) CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Hillside E of S facing gully on W. side of mesa. South Table Mountain. W. side of mesa. 13N 0484293E 4399631N. Mary E. Edwards 425. 1 Jun 1983. ( COLO 00335588 KHD20937 ) . .

Lotus tenuis Waldst. & Kit. ex Willd.  Narrowleaf Birds Foot Trefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Also collected here: Juncus interior, Veronica anagallis-aquatica and Dianthus armeria. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2110. 1 Jul 2019. ( Golden OBI ) . .

Lupinus argenteus Pursh.  Loosely Flowered Silver Lupine. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Lower north slopes of North Table Mountain, between the Tablerock Trail and North Table Loop, 4.0 km north northeast of the GNIS location of Golden. Tom Schweich 1208. 13 Jul 2015. ( JCOS s.n. KHD00060602 UC ) . .

Lupinus argenteus Pursh var. argenteus.  Loosely Flowered Silver Lupine. CalPhotos. Jepson eFlora. SEINet Taxon.

Characters observed while keying: Perennial > 1 dm, stem hairs appressed, leaves cauline, petioles 4-4.5mm, calyx spurred <= 1 mm, banner back hairy, keel upper margin ciliate distal half.

- North Table Mountain Park, North-facing grassy slope, 50 m south of the Mesa Top Trail, 150 m west of the east rim of North Table Mountain, 3.6 km northeast of the GNIS location of Golden. Tom Schweich 1137. 9 Jun 2015. ( CAS JCOS s.n. KHD56843 UC UCR265983 ) . .

Lupinus caudatus Kellogg var. argophyllus (A. Gray) S.L. Welsh.  (=Lupinus caudatus Kellogg ssp. argophyllus (A.Gray) E.Phillips) Kellogg's Spurred Lupine. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 1 m.; Leaves, cauline, petiole 35-40 mm., palmately compound, 44 mm. × 70 mm. wide, leaflets, 7-9, 36 mm. × 9 mm. wide, oblanceolate, veins 1, adaxial glabrate, abaxial appressed hairy; Inflorescence, well above the leaves, 25 cm. × 3.5 mm. wide; Pedicel, 3.5 mm., recurved, silky hairy; Calyx, silky hairy, lower lobe, 9 mm., upper lobe, 6 mm., spur, more a bump, ≤1 mm.; Banner, 9 mm., reflexed 2.5 mm from tip, folded tightly over wings, back hairy inside folds; Wing, 10 mm. × 5.5 mm. wide, claw, 1.5 mm. × 1 mm. wide; Keel, 10 mm., hairy on bottom, tip dark, recurved <3 mm. giving closed appearance; Style, glabrous; Stigma, small, 4-lobed. Described from Coll. No. 1675, 19 Jun 2018.

- Lippincott Property, Openings in ponderosa pine woodland. The collector was competing with the cows to collect these before the cows ate them all. Northernmost Jefferson County, jointly owned by City of Boulder OSMP and Jefferson County Open Space, moderate slope above and on the north side of Bull Gulch, 23.4 km. north northwest of the GNIS location of Golden Tom Schweich 2169. 21 Jul 2019. ( Golden OBI ) .

- Ranson/Edwards Homestead Open Space Park, Among deep grasses and near the mouth of a minor ephemeral creek. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.1 mile north on Plainview Road, then 580 m. east northeast to the lowest terrace of Coal Creek. Tom Schweich, with Jerry Bader and Anthony Massaro 1675. 19 Jun 2017. ( JCOS s.n. KHD00065367 UCR ) . .

Medicago lupulina L.  Black Medick. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual herb, prostrate, to 1 cm. × 50 cm. wide; Leaves, compound, stipules, leaf-like, 6.5 mm., petioles, 11 mm., leaflets, #3, obovate, 5 mm. × 5-6 mm. wide, margin denticulate, middle leaflet extended beyond lateral leaflet on a petiolule; Inflorescence, compact axillary raceme, 8 mm. × 3.5 mm. wide; Sepals, 1 mm.; Flowers, 2 mm., color yellow; Fruit, unknown -- should be curved (Described from Coll. No. 1803, 7 May 2018).

- North Table Mountain Park, Small yellow flowers on Mesa Top Trail. Eastern slope of North Table Mountain, just below the rim of the mesa, beside the Mesa Top Trail which is a former road, 3.83 km. northeast of the GNIS location of Golden Tom Schweich 1803. 8 May 2018. ( JCOS s.n. KHD00069148 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, S facing hillside, uncommon. South Table Mountain, above Quaker Road gate and belowhigh point on mesa. 13N 0484195E 4400351N. Mary E. Edwards 411. 1 Jun 1983. ( KHD20939 ) . .

Medicago sativa L.  Alfalfa. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to a location just southeast of the original homestead. Tom Schweich 1686. 28 Jun 2017. ( CDA JCOS s.n. KHD00065410 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, mesa top at edge of S facing slope, widespread and common. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 680. 11 Jul 1983. ( COLO00342782 KHD20936 ) A lava capped mesa in the Denver Formation, E facing slope, abundant along the edge fo trail. South Table Mountain, on Jefferson County Open Space land. 13N 0484293E 4399631N. Mary E. Edwards 498. 1 Jul 1983. ( KHD20938 ) . .

Melilotus albus Medik.  CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Mixed grasses and forbs. Introduced. Not considered a noxious weed in Colorado. Lower north slopes of North Table Mountain, beside the North Table Loop, 0.72 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.5 km. north northwest of the GNIS location of Golden. Tom Schweich 1542. 18 Aug 2016. ( CDA JCOS s.n. KHD00063963 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, plants abundant South Table Mountain, along Quaker Road. near gate. 13N 0484293E 4399631N. Loraine Yeatts 649. 3 Jul 1983. ( COLO00343095 KHD20935 ) . .

Melilotus officinalis (L.) Lam.  Yellow Sweet Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Rocky Mountain Front Range, northwest quadrant of North Table Mountain, a lava-capped mesa of Denver Formation, along the side of Mesa Top Trail also the road to the radio towers, 3.3 km. north of the GNIS location of Golden. Tom Schweich 1694. 29 Jun 2017. ( JCOS s.n. KHD00065365 UCR ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to a location just southeast of the original homestead. Tom Schweich 1687. 28 Jun 2017. ( JCOS s.n. KHD00065368 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, on mesa rim, extremely abundant and widespread. South Table Mountain, along Quaker Road. 13N 0484293E 4399631N. Loraine Yeatts 639. 3 Jul 1983. ( KHD21268 ) . .

Oxytropis lambertii Pursh.  Purple Locoweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, acaulescent, mostly dolabriform hairs (one arm much shorter than the other); Leaves, basal, pinnately compound, leaflets #17, terminal leaflet present; Inflorescence, raceme, peduncle 30 cm., pedicels very short; Bracts, 7 mm. × 1.6 mm. wide, green, lanceolate; Calyx, tube 7 mm. + lobes 4 mm. = 11 mm.; Flower, zygomorphic, various shades of magenta to purple, banner, 17 mm., wings, 16 mm., keel, 13 mm., blades united enclosing stamens, recurved beak; Stamens, #10, diadelphous (Described from Coll. No. 1385, 1 June 2016).

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. J. Reseigh 1. 2 Jun 2000. ( CS80216 ) .

- North Table Mountain Park, Northwest base of North Table Mountain, about 120 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1385. 1 Jun 2016. ( JCOS s.n. KHD00063954 ) .

- Ranson/Edwards Homestead Open Space Park, Open gentle slope with grasses and forbs, lightly grazed in 2016. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.6 mi. north on Plainview Road, then 450 m. southwest upslope.15.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1416. 10 Jun 2016. ( JCOS s.n. KHD00063611 UC ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, on mesa top along road, occasional. South Table Mountain, along road to Castle Rock. 13N 0482315E 4400397N. Loraine Yeatts 901. 6 Jun 1984. ( CS79990 KHD21101 ) A lava capped mesa in the Denver Formation. Rocky hillside. Relatively common & widespread. S. Table Mt. N. of Quaker Rd. gate. UTM: 843999. Mary E. Edwards 414. 1 Jun 1983. ( COLO 00346965 ) . .

Oxytropis sericea Torr. & A. Gray.  White Locoweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Sandy soil, occasional. Front Range, Golden, South Table Mountain, just East of Castle Rock summit. 13N 0482075E 4400443N. Stanley Smookler 58. 16 Jun 1993. ( KHD30086 ) . .

Pediomelum tenuiflorum (Pursh) A. N. Egan.  (Syn: Psoralea tenuiflora Pursh , Psoralidium tenuiflorum (Pursh) Rydb. ) Slimflower Scurfpea. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, on S facing slope below mesa rim, extremely abundant and widespread. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 696. 16 Jul 1983. ( KHD21100 ) A lava capped mesa in the Denver Formation. E. facing slope; common. S. Table Mt. On Jefferson County Open Space land. UTM: 862999 Mary E. Edwards 502.1 17 Jul 1983. ( COLO00350546 ) . .

Psoralidium tenuiflorum (Pursh) Rydb.  (=Pediomelum tenuiflorum (Pursh) A. N. Egan) Slimflower Scurfpea. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Lower north slopes of North Table Mountain, 0.76 km southeast of the Mesa Spur Trailhead in 58th Avenue, 4.58 km. north northeast of the GNIS location of Golden. Tom Schweich 1509. 22 Jul 2016. ( CS JCOS s.n. KHD00063628 OBI83336 UCR ) .

- Ranson/Edwards Homestead Open Space Park, Dry alluvial terrace above watercourse. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 215 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1459. 27 Jun 2016. ( CAS EIU JCOS s.n. KHD00063621 ) . .

Robinia pseudoacacia L.  Black Locust. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, only place seen on flat mesa top. South Table Mountain, along E-W road, near rim at SW corner. 13N 0483249E 4400360N. Loraine Yeatts 1112. 14 Oct 1984. ( KHD21099 ) A lava capped mesa in the Denver Formation, on flat mesa top near rim at SW corner. South Table Mountain, along E-W road. 13N 0483249E 4400360N. Peter G. Root 8323. 17 Jul 1983. ( COLO00351510 CS81650 KHD21098 ) . .

Thermopsis rhombifolia (Pursh) Richardson.  Prairie Thermopsis. CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Falcon Park, USA, Colorado, Jefferson County, Mount Falcon, foothills of the Front Range, W of Denver. Carol Dawson 11 May 1989. ( KHD27937 ) . .

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson var. divaricarpa (A. Nelson) Isely.  (=Thermopsis divaricarpa A. Nelson) Prairie Thermopsis. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Large patch in meadow, visited by large bumblebees. Lower part of Cottonwood Canyon, 285 m. northwest of Neighborhood Access trailhead at Ridge Road and Ulysses Way, 2.89 km. northeast of the GNIS location of Golden. Tom Schweich 1347. 20 May 2016. ( CS JCOS s.n. KHD00063925 UCR278793 ) Large patch in meadow, visited by large bumblebees. On the other side of the creek from my Coll. No. 1347 of the same taxon. Lower part of Cottonwood Canyon, 285 m. northwest of Neighborhood Access trailhead at Ridge Road and Ulysses Way, 2.89 km. northeast of the GNIS location of Golden. Tom Schweich 1348. 20 May 2016. ( CAS OBI83325 UC ) .

- Ranson/Edwards Homestead Open Space Park, Small ridge between two watercourses. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 335 m. north of Plainview Road. Tom Schweich 1375. 29 May 2016. ( COLO02348480 EIU JCOS s.n. KHD00063931 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation. Mesatop meadow; widespread in large, showy patches. S. Table Mt. UTM: 845995. Loraine Yeatts 475. 10 May 1983. ( COLO00352096 ) A lava capped mesa in the Denver Formation, around lava boulders on flats above mesa rim, widespread in large, showy patches. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 497. 16 May 1983. ( KHD21105 ) . .

Trifolium hybridum L.  Alsike Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm., sprawling-ascending; Leaves, cauline, petiole to 90+ mm., stipules, to 25 mm., entire, acute, leaf compound, ternate, leaflets, 3, 20 mm. × 16 mm. wide, attached at a single point, margin serrate, generally glabrous, scant hairs along distal margins; Inflorescence, flowers in heads, peduncles, 55-95 mm., heads 22 mm. diameter, many flowers, bracts inconspicuous (1 mm.); Calyx, tube 1 mm. + lobes 2 mm.; Corolla, 7 mm. Described from Coll. No. 1683, 28 Jun 2017.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. Tom Schweich 1683. 28 Jun 2017. ( CDA JCOS s.n. KHD00065407 UCR ) . .

Trifolium pratense L.  Red Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, erect, to 50 cm., hairs not hooked at tips; Stem, spreading hairy; Stipules, 21 mm. × 5 mm. wide, connate, scarious with several green nerves; Leaves, ternately compound, leaflets, 38 mm. × 20 mm. wide, margins slightly wavy tip short mucronate (easier to see on young leaves), both sides long wavy hairy; Heads, sessile, subtended by stipules and a pair of leaves, many flowers; Fruit, unknown. Introduced. (Described from Coll. No. 1458, 27 June 2016.)

- Ranson/Edwards Homestead Open Space Park, On the edge of a spring-fed swale close to an ephemeral stream. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1458. 27 Jun 2016. ( KHD65720 ) On the bank of a small stream that has been diverted to water a terrace above Coal Creek. High plains above Rocky Flats, west 1.7 mi. on CO Hwy 72 from CO Hwy 93, generally north 1.0 mi. on Plainview Road, then 360 m. east to a small stream, 19.4 km. north northeast of the GNIS location of Golden. Tom Schweich 2122. 6 Jul 2019. ( Golden OBI ) . .

Trifolium repens L.  White Clover. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Also collected here: Juncus bufonius, Prunella vulgaris, and Alopecurus carolinianus. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, muddy places beside flowing water diverted through former clay pit, 22.0 km. north northwest of the GNIS location of Golden. Tom Schweich 2143. 13 Jul 2019. ( Golden OBI ) . .

Vicia americana Willd.  American Vetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 30 cm.; Stem, not winged; Leaves, stipules, 3-4 mm. × 10-15 mm. wide, reduced above, lobed, not connate, nectary 0; cauline, compound, odd-pinnate, leaflets #6-8, + simple or 2(4)-forked tendril; Inflorescence, raceme, 4-5 flowered, pedicel 17 mm.; Flowers, zygomorphic, 14-20 mm., petals, ±white to blue distally, banner sometimes pink at point of inflection; Style, round, ring of hairs below stigma; Legume, stipe 5 mm. + body 20-32 mm. × 3-4 mm. wide + persistent style 2 mm. (Described from Coll. No. 1387, 1 June 2016, and Coll. No. 1394, 1 June 2016). Specimens with fewer flowers per raceme and forked tendrils are determined variety minor.

- Lippincott Property, Edge of open ponderosa pine woodland at break in slope. Variety minor if infraspecific names are to be applied. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2084. 17 Jun 2019. ( Golden ) .

- North Table Mountain Park, [Variety americana if infraspecific names are to be applied.] Small canyon draining the northwest side of North Table Mountain, about 160 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1387. 1 Jun 2016. ( JCOS s.n. KHD00063956 UC ) Same as Coll. No. 1387. [Variety americana if infraspecific names are to be applied.] Northwest side of North Table Mountain, southwest-facing slope above canyon, on the edge of the disturbed construction area for the underground water tank and 80 m. west of the Mesa Top Trail, 3.5 km north of the GNIS location of Golden. Tom Schweich 1390. 1 Jun 2016. ( CAS OBI83204 UCR277978 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, meadow; very common in patches on flat areas of mesa above and below rim. South Table Mountain, meadow just N. of junction of Quaker Road and Golden Hills Road. 13N 0484145E 4398323N. Loraine Yeatts 596. 27 Jun 1983. ( KHD21104 ) USA, Colorado, Jefferson County, S. Table Mt., Jefferson County Open Space M ary Edwards 435. 12 Jun 1983. ( CS81651 CS81653 ) A lava capped mesa in the Denver Formation. E. facing slope; very common along trail with grasses. . S. Table Mt. On Jefferson County Open Space land. UTM: 862999 Mary E. Edwards 496. 1 Jul 1983. ( COLO 00360693 ) . .

Vicia ludoviciana Nutt.  Louisiana Vetch. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, S facing steep open slope, loose scree soil, relatively common in grass. South Table Mountain, under Castle Rock. 13N 0481991E 4400335N. Loraine Yeatts 1195. 13 May 1985. ( CM332463 COLO00362269 KHD21712 ) . .

Vicia villosa Roth.  Hairy Vetch. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herb, sprawling through the smooth brome, to 50 cm.; Leaves, compound, stipules, 13 mm. × 3 mm. wide, 2-lobed, petiole, 0, blade, 75 mm. × 28 mm. wide, leaflets, #13-15, 20 mm. × 4 mm. wide, linear-elliptic, terminal leaflet a tendril, forked, #3-4, hairs, straight; Inflorescence, raceme, secund, flowers, #±20; Calyx, tube 3 mm. + lobes 4 mm., narrow, hairs simple; Flower, zygomorphic, white to dark blue, banner, 16 mm., reflexed ¾, wings, 14 mm., clawed, dark blue, keel, 11 mm., tip obtuse; Style, ring of hairs below stigma, 0.6 mm.; Fruit, (immature) 5 mm. × 0.8 mm wide, lanceolate, glabrous. (Described from Coll. No. 1875, 24 May 2018.)

- North Table Mountain Park, Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, just off North Table Loop in the direction of Ramstetter Reservoir, 3.67 km. north of the GNIS location of Golden. Tom Schweich 1875. 24 May 2018. ( JCOS s.n. KHD00069145 ) .

- South Table Mountain, In fine, sandy soil of dry open field. Front Range, Golden, South Table Mt., W. side of S. Table Mt. at base near 18th St. trailhead. 13N 0481976E 4400382N. Stanley Smookler 59. 16 Jun 1993. ( KHD30051 ) .

Fagaceae

Quercus gambelii Nutt.  Gambel's oak. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Valley Park, Tom Schweich 2288. 20 May 2020. ( Golden ) .

Fumariaceae

Corydalis aurea Willd.  Scrambled Eggs. CalPhotos. Jepson eFlora. SEINet Taxon.

- Clear Creek Canyon Park, Grassy slopes. Tom Schweich 4/27/2018. .

- North Table Mountain Park, Dry moderately steep hillside cluttered with latite-rock float. Occasional to scattered. East side of North Table Mountain in city of Golden, accessed from Easley Rd to Fairmount Trailhead, Jeffco open space. Site is located at he end of unmarked trail on north bank of moderately steep ravine, 2-3 miles NW from the trailhead. Stanley Smookler 216. 6 May 2000. ( KHD18023 ) Two plants at base of boulder. Tom Schweich 4/12/2016. .

- South Table Mountain, A lava capped mesa in the Denver Formation. Near bottom on SW facing steep, boulder covered slope, under Hackberry & Mt. Mahogany; only a few plants seen; wth Scrophularia & Mertensia. S. Table Mt. Below Castle Rock. UTM: 818003 Loraine Yeatts 1193. 13 May 1985. ( COLO00367177 ) E side of mesa on E facing slope above open space trailhead and below rimrock cliff; in clay on boulder strewn slope, often against boulders in open shrub community; with Rhus aromatica ssp. trilobata, Atriplex canescens and Acrolasia albicaulis, Alyssum This has never appeared on this site before, and is evidently introduced , Front Range,South Table Mt. 13N 0486167E 4399948N. Loraine Yeatts 4861. 12 May 2003. ( COLO00925149 KHD4381 ) A lava capped mesa in the Denver Formation, near bottom of SW facing steep, boulder covered slope, under Hackberry and Mountain Mahogany, only a few plants seen. South Table Mountain, below Castle Rock. 13N 0482052E 4400328N. Stanley Smookler 1192. 7 May 1985. ( KHD21741 ) .

Gentianaceae

Frasera speciosa Griseb.  (Syn: Swertia radiata (Kellogg) Kuntze ) Elkweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Open meadows. Tom Schweich 4/18/2019. .

- Mount Falcon Park, Northeast slope, grassy edges of ponderosa pine woodland. Tom Schweich 6/1/2015. .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 7/26/2015. Collected only four flowers and two leaves because this was a single plant out on the lone prairie. High plains above Rocky Flats, 15.3 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 190 m. east of Plainview Road, 100 m. north of creek. Tom Schweich 1122. 28 May 2015. ( KHD56973 ) Limited plant parts collected, only one plant in bloom in this foothill prairie location. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 950 m. northeast past the old homestead to the northeast corner of the open space; about 16.3 km. north of the GNIS location of Golden. Tom Schweich 1840. 17 May 2018. ( JCOS s.n. UCR 289027 ) About twelve plants seen, about half of which will bloom this year. Openings in grassy, recently burned, ponderosa pine woodland, about 520 meters northeast of Plainview. Tom Schweich, with Matt Schweich 1084. 25 Apr 2015. ( Not collected, immature. ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Gentiana affinis Griseb.  (Syn: Pneumonanthe oregana (Engelm. ex A. Gray) Greene ) Pleated or Rocky Mountain Gentian.. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 8/28/2015. Open grasslands in the highest part of the park. Found, with increasing density, from Plainview Road up to the Union Pacific railroad tracks. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, then 750 m. west of Plainview Road. Tom Schweich 1283. 28 Aug 2015. ( JCOS s.n. ) Open grasslands in the highest part of the park. Found, with increasing density, from Plainview Road up to the Union Pacific railroad tracks. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, then 825 m. west of Plainview Road. Tom Schweich 1284. 28 Aug 2015. ( KHD00062055 UCR267481 ) High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 35 meters southwest on the slope above the road. Tom Schweich 1761. 1 Sep 2017. ( Golden JCOS s.n. KHD00065166 ) .

Geraniaceae

Erodium cicutarium (L.) L'Her. ex Aiton.  Redstem Stork's Bill. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Margin of a small meadow in saddle between hogback and flatiron. Very wet. Collected with Veronica arvensis and V. biloba. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2063.3 6 Jun 2019. ( Golden ) .

- North Table Mountain Park, Colorado Noxious Weed List C. Southeast-draining canyon on the south side of North Table Mountain, near intersection of social trail and North Table Loop, 1.85 km. northeast of the GNIS location of Golden. Tom Schweich 1342. 12 May 2016. ( JCOS s.n. KHD00063927 UC ) .

- South Table Mountain, A lava capped mesa in the Denver Formation, below mesa edge; with open cover on almost bare clay, abundant. South Table Mountain, below mesa edge W. of Quaker Road. 13N 0484218E 4400408N. Loraine Yeatts 345. 28 Feb 1983. ( KHD20705 ) A lava capped mesa in the Denver Formation, S facing slope below mesa edge, abundant. South Table Mountain, below mesa edge just W. of Quaker Road. 13N 0484218E 4400408N. Loraine Yeatts 469. 2 May 1983. ( COLO00380964 KHD20706 ) . .

Geranium caespitosum James.  Pineywoods Geranium. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 65 m. west of Plainview Road. Tom Schweich 1226. 16 Jul 2015. ( CAS EIU JCOS s.n. KHD00061510 OBI83190 ) On the bank of a small ephemeral stream (that was running on this particular day). High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 555 meters a little north of west along a small ephemeral stream. Tom Schweich 1725. 27 Jul 2017. ( COLO02348092 Golden JCOS s.n. KHD00065327 ) .

- South Table Mountain, Many large clumps to 2' high; corolla pink with red veins. S Table Mt. In gully which drains E. toward Quaker Rd. Loraine Yeatts 677. 11 Jul 1983. ( CS81505 ) A lava capped mesa in the Denver Formation, common in drainage at head of S. facing gully. South Table Mountain. 13N 0484293E 4399631N. Mary E. Edwards 422. 1 Jun 1983. ( KHD20855 ) .

Grossulariaceae

Ribes aureum Pursh.  Golden Currant. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1319, 4 May 2016: Perennial shrub, to 1 m.; Stem, unarmed; Leaves, fascicled, broadly ovate, 29 mm. × 22 mm. wide, lobes 3, obtuse; Hypanthium, 9 mm., bright yellow; Sepals, petaloid, 5 mm.; Petals, 2.5 mm.; Ovary, 2 mm.

- North Table Mountain Park, Tom Schweich 4/12/2016. In a protected little rock enclosure, southeast aspect, more along the trail above. Along the lower portion of the Golden Cliffs Trail, about 150 m. from the parking lot and trailhead,1.4 km. northeast of the GNIS location of Golden. Tom Schweich 1319. 4 May 2016. ( JCOS s.n. KHD00063904 UCR277962 ) .

- Ranson/Edwards Homestead Open Space Park, One shrub in pile of rocks in an otherwise open grassy field. The pile of rocks may be artificial given the proximity of the original homestead. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 530 m. northeast past the old homestead, about 15.9 km. north of the GNIS location of Golden. Tom Schweich 1834. 17 May 2018. ( JCOS s.n. KHD00069200 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; along stream; SW facing gully. South Table Mountain. 13N 0484096E 4400293N. Janet L. Wingate 2372. 1 Jun 1983. ( COLO00384982 KHD13181 ) A lava capped mesa in the Denver Formation; in major S facing gully with flowing water, on steep E facing slope near gully bottom Wild Plum and Chokecherry thicket; occcasional. South Table Mountain. 13N 0483173E 4400498N. Loraine Yeatts 486. 16 May 1983. ( KHD20704 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Ribes cereum Douglas.  Wax Currant. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Along the eastern boundary fence. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 660 m. east northeast; about 15.7 km. north of the GNIS location of Golden. Tom Schweich 1844. 17 May 2018. ( JCOS s.n. KHD00069202 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; near mesa edge above S. facing slope, abundant and widespread. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 476. 10 May 1983. ( COLO00389254 KHD20703 ) A lava capped mesa in the Denver Formation; W. facing slope just below mesa edge at head of minor gully; abundant and widespread. South Table Mountain. 13N 0484293E 4399631N. Loraine Yeatts 700. 16 Jul 1983. ( KHD20931 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. .

Hydrangeaceae

Jamesia americana Torr. & A. Gray.  Fivepetal Cliffbush. CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. J. Reseigh 3. 2 Jun 2000. ( CS80217 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; only known location on mesa; on steep N. facing slope against base of vertical seeping 50 ft. cliff, in shrubby thicket. Front Range, S. Table Mt. 13N 0484293E 4399631N. Loraine Yeatts 2230. 8 May 1990. ( KHD28295 ) A lava capped mesa in the Denver Formation; on steep N. facing slope against base of vertical seeping 50 ft. cliff, in shrubby thicket; only known location on mesa. (Collection date estimated from Colls. No. 2393 and 2397.) South Table Mountain, Front Range. 13N 0484293E 4399631N. Loraine Yeatts 2395. 18 Jun 1990. ( COLO00404632 KHD28290 ) .

Hypericaceae

Hypericum perforatum L.  Common St. John's Wort. Weed: CO DofA, List: C. CalPhotos. Jepson eFlora. SEINet Taxon.

Treated in family Clusiaceae by Ackerman (2015). Hypericaceae retained at rank of Family by APG IV.

- Lippincott Property, Deep forest duff in ponderosa pine woodland, with Collomia linearis, Eriogonum umbellatum, Lappula occidentalis, and Campanula rotundifolia. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest corner near the railroad tracks, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2153. 13 Jul 2019. ( Golden ) Highest prairie at edge of ponderosa pine woodland. Heavily grazed by cattle. Also collected here: Symphyotrichum laeve. Colorado Noxious Weed List C. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, north segment of parcel, south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2221. 29 Aug 2019. ( Golden OBI ) .

- North Table Mountain Park, Colorado Noxious Weed List C species. Northern part of top of North Table Mountain, just east of the radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1229. 20 Jul 2015. ( CDA JCOS s.n. KHD00061520 ) .

- Ranson/Edwards Homestead Open Space Park, Adjacent to intermittent stream. Colorado Noxious Weed List C species. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 102 m. west of Plainview Road. Tom Schweich 1250. 27 Jul 2015. ( JCOS s.n. KHD00061519 UC UCR267473 ) .

Lamiaceae

Lycopus americanus W. P. C. Barton.  American Bugleweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Growing in banks of ephemeral creek, below a small reservoir. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, then 860 m. west of Plainview Road, nearing the railroad tracks at the top of the park. Tom Schweich 1287. 28 Aug 2015. ( JCOS s.n. KHD61517 UCR267484 ) Streamside. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 655 meters a little north of west along a small ephemeral stream. Tom Schweich 1721. 28 Jul 2017. ( Golden JCOS s.n. ) . .

Marrubium vulgare L.  Horehound. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; at base of seeping cliff near mesa rim; locally abundant. South Table Mountain. 13N 0483300E 4399500N. Loraine Yeatts 637. 3 Jul 1983. ( COLO00431015 CS81656 KHD20826 ) . .

Mentha arvensis L.  Wild Mint. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb; Stem erect; Internodes visible; Leaves ±equal in size upward; Infloresence axillary clusters distributed along stem; Calyx 5-lobed, radially symmetrical, lobes and tips equally hairy; Flowers radial, 3 mm; Stamens exserted, fertile 4; Style exserted (Described from Coll. No. 718, 20 Nov 2011).

- Ranson/Edwards Homestead Open Space Park, In dense vegetation beside intermittent stream. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 75 m. west of Plainview Road. Tom Schweich 1224. 16 Jul 2015. ( JCOS s.n. KHD00061509 UC ) High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 610 meters a little north of west along a small ephemeral stream. Tom Schweich 1722. 28 Jul 2017. ( EIU029807 Golden JCOS s.n. OBI124852 UCR ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; at head of NE facing gully; small patch in running water. South Table Mountain; overlooking Rollins Hills Country Club. 13N 0484100E 4400300N. Loraine Yeatts 1091. 18 Sep 1984. ( KHD20617 ) . .

Monarda fistulosa L.  Wild Bergamot. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Damp places among ponderosa pine woodland. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, a little southwest of the clay pit and adit, 22.1 km. north northwest of the GNIS location of Golden. Tom Schweich 2145. 13 Jul 2019. ( Golden OBI ) .

- North Table Mountain Park, Rocky Mountain Front Range, north slope of North Table Mountain, a lava-capped mesa of Denver Formation, just below the rim, 3.7 km north northeast of the GNIS location of Golden. Tom Schweich 1697. 29 Jun 2017. ( Golden JCOS s.n. KHD00065383 ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 7/26/2015. Tom Schweich 7/26/2015. Bottom of a watercourse with tall willows; frequently occupied by resting elk. Highest plains above Rocky Flats, 1.7 mi. west on CO Highway 72 from CO Highway 93, 1.5 mi. generally north on Plainview Road, then about 260 m. north, 15.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1977. 13 Jul 2018. ( JCOS s.n. KHD00069149 OBI ) .

- South Table Mountain, Occasional, On S facing slope near seep; w/ Rosa sayi, Asclepias speciosa, Solidago missouriensis, Conium maculatum on border of Padus virginiana ssp. melanocarpa thicket; locally common but only place seen on mesa. A lava capped mesa in the Denver formation. Front Range, S. Table Mt., a lava capped mesa in the Denver formation; On South facing slope near seep. 13N 0484000E 4399200N. Loraine Yeatts 3041. 19 Aug 1991. ( COLO 00432765 KHD29292 ) . [ COLO449215 is determined var. menthifolia. ]

- Windy Saddle Park, Growing in poison ivy. Southeastern Windy Saddle Park, west of and above the Colorado School of Mines Survey Field, 2.31 km south southwest of the GNIS location of Golden. Tom Schweich 1245. 24 Jul 2015. ( JCOS s.n. KHD00061511 UC UCR267462 ) . .

Monarda pectinata Nutt.  Plains Beebalm. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 25 cm., erect; Stem, hairs retrorse; Leaves, cauline, opposite, petiole 7 mm. + blade 35 mm. × 8 mm. wide, ovate-lanceolate, pinnate veined, margin serrate, gland-dotted; Inflorescence, axillary clusters; Corolla, 14 mm., upper lip prominent, color cream. Described from Coll. No. 1236, 20 Jul 2015.

- North Table Mountain Park, Several inconspicuous plants in grasslands. Northern portion of North Table Mountain, 160 m northeast of radio tower, 3.4 km north northeast of the GNIS location of Golden. Tom Schweich 1236. 20 Jul 2015. ( KHD00061513 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; clay substrate; S. side of high point above gully; 3 plants seen. South Table Mountain; 1st major N. facing gully E. of Castle Rock. 13N 0483140E 4400680N. Loraine Yeatts 1472. 24 Jun 1987. ( KHD25151 ) . .

Nepeta cataria L.  Catnip. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Stem, square, hispid; Leaves, opposite, petiole, 8 mm., blade, 40 mm. × 19 mm. wide, reduced above, deltoid-chordate, margin, crenate, abaxial densely hispid, rather than tomentose per Ackerfield (2015), tip, acute; Inflorescence, flower clusters arising from axils, flowers pedicillate; Calyx, lobes sharply acute but lacking spines or bristles; Corolla, 2-lipped, white (Described from Coll. No. 2214, 29 August 2019).

- Lippincott Property, Also collected here: Grindelia squarrosa, Heterotheca foliosa, Pericome caudata, Senecio spartioides, and Urtica dioica. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, among boulders on the south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2214. 29 Aug 2019. ( Golden OBI ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; at head of N. facing gully; large patch in running water. South Table Mountain; overlooking Rollin Hills Country Club. 13N 0484100E 4400300N. Loraine Yeatts 1080. 18 Sep 1984. ( CS81653 CS81654 KHD20857 ) . .

Prunella vulgaris L.  Common Selfheal. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, At edge of small creek; also collected here: Dianthus armeria, Heterotheca villosa, Potentilla recta, and Veronica anagallis-aquatica. Also Coll. No. 2144, about 550 m. northwest where the creek is diverted through the former clay pit. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2112. 1 Jul 2019. ( Golden ) Also collected here: Juncus bufonius, Trifolium repens, and Alopecurus carolinianus. Also Coll. No. 2112 about 550 m. southeast along a small natural stream. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, muddy places beside flowing water diverted through former clay pit, 22.0 km. north northwest of the GNIS location of Golden. Tom Schweich 2144. 13 Jul 2019. ( Golden ) .

- North Table Mountain Park, Growing in running water at the junction of two small ephemeral streams. Southern rim of North Table Mountain, adjacent to North Table Loop, head of unnamed canyon draining southeast to Clear Creek, 1.84 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1449. 22 Jun 2016. ( JCOS s.n. KHD00063986 UCR278008 ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 16.25 km north northwest of Golden, 1.8 miles north of CO State Highway 72 on Plainview Road, then 315 m. southwest of Plainview Road. Tom Schweich 1294. 9 Sep 2015. ( Golden ) On the edge of a spring-fed swale close to an ephemeral stream. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the north side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1457. 27 Jun 2016. ( CAS EIU JCOS s.n. KHD00063979 OBI83326 ) . .

Salvia reflexa Hornemann.  (Syn: S. lanceolata Rydb. [unpub.] , S. lanceolata Willd. [illeg.] , S. trichostemmoides Pursh ) Lanceleaf Sage. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Plants branching laterally after being eaten. Outside edge of a small outwash gravel bar, a few meters west of Plainview Road; 1.7 mi. west on CO Highway 72 Coal Creek Canyon Road from CO Highway 93, 1.2 mi. north on Plainview Road; 15.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1566. 28 Sep 2016. ( CS JCOS s.n. KHD00063822 ) .

- South Table Mountain, In roadbed gravel on S Table Mountain, a lava capped mesa. Rare. S. Table Mountain. Along E. side of Quaker Rd. 13N 0484836E 4398675N. Loraine Yeatts 767. 7 Aug 1983. ( KHD20861 ) . .

Scutellaria brittonii Porter.  Britton's Skullcap. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Moderate slope above rock outcrop. Lower Cottonwood Canyon on southeast side of North Table Mountain, about 260 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1352. 20 May 2016. ( JCOS s.n. KHD00063808 ) .

- Ranson/Edwards Homestead Open Space Park, Relatively dry terrace on south side of small creek, in open prairie, lightly grazed in some recent years. High plains above Rocky Flats, 1.7 mi. west on CO 72 from CO 93, 1.1 mi. generally north on Plainview Road, then approx. 75 m. east. Tom Schweich 2076. 10 Jun 2019. ( OBI ) .

- South Valley Park, Openings in Gambel oaks. Tom Schweich 2291. 20 May 2020. ( Golden ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on S. fcing slope below mesa edge in clay with little cover; realtively common. South Table Mountain. 13N 0484200ER 4399300N; Loraine Yeatts 579. 16 Jun 1983. ( CS85525 KHD20701 ) .

Linaceae

Linum lewisii Pursh.  (Syn: Adenolinum lewisii (Pursh) A. Löve & D. Löve ) Prairie Blue Flax. CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. Verbatim Coordinates: T5S R70W. J. Reseigh 22. 2 Jun 2000. ( CS80209 ) .

- South Table Mountain, On S facing slope. Extremely common & widespread. A lava capped mesa in the Denver Formation. S. Table Mt. Just W of Quaker Rd. below mesa rim. UTM: 842993 Loraine Yeatts 508. 24 May 1983. ( COLO00439711 ) A lava capped mesa in the Denver Formation; gently sloping meadow near mesatop; extremely abundant and widespread. South Table Mountain. 13N 0484100E 4399600N. Mary E. Edwards 410. 1 Jun 1983. ( KHD21135 ) . .

Linum perenne L.  (Syn: Adenolinum perenne (L.) Rchb. ) Blue Flax. CalPhotos. Jepson eFlora. SEINet Taxon.

Weber & Wittmann (2012) distinguish between L. perenne and L. lewisii with the character of heterostyly in which some plants have styles longer than stamens and others with styles shorter than stamens. They apply homostyly to L. lewisii noting that the styles and stamens are approximately equal. My plants (Coll. No. 1383) consistently have styles longer than stamens. The key in Ackerfield (2015), based on plant structure and overall shape is not helpful because of the range of characters observed with this collection.

- North Table Mountain Park, On the edge of a small hill. Northwest base of North Table Mountain, about 110 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1383. 1 Jun 2016. ( CAS CS JCOS s.n. KHD00063951 OBI83206 UC UCR277980 ) .

- South Table Mountain, Habitat: abundant and widespread. USA, Colorado, Jefferson County, S Table Mt., on S-facing slope below mesa edge. Loraine Yeatts 498. 16 May 1983. ( CS85533 ) .

Loasaceae

Mentzelia Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, On an artificial slope inside the basalt quarry. Top of North Table Mountain, in basalt quary on west side, 2.1 km. north of the GNIS location of Golden. Tom Schweich 1742. 15 Aug 2017. . .

Mentzelia albicaulis Hook.  (Syn: Acrolasia albicaulis (Douglas) Rydb. ) White-Stem Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, 15-20 cm., taproot; Leaves, basal and cauline, deeply pinnately alternately lobed to mid-rib; Bract lanceolate, 6 mm., entire or 3-lobed, green, not conspicuous, not concealing fruits; Corolla petals free, 5-6 mm. × 2.0-2.5 mm. wide, with orange base and yellow tip; Style, 2.8 mm.; Fruit cylindric-obconic (Sect. Trachyphytum), 15-20 mm. × 2.5 (4.0) mm. wide, curved 30°-80°(130°); Seeds in 4 above mid-fruit, angular, 1.3 mm. × 0.7 mm. × 0.5 mm., dark brown to black in age, seed coat cells domed on seed surface edges, seed coat cells flattened away from edges (Described from Coll. No. 390, 427, and 958).

- South Table Mountain, In heavy clay; growing under Cercocarpus montanus shrubs with Lappula redowskii, Alyssum minus, Astragalus drummondii. Common from base of slope to base of Castle Rock. in Mt. mahogany comm. & on barren clay. Denver formation. Front Range, Golden, S. Table Mt., near base of mesa above 16th st. on steep SW facing slope. Lava capped mesa. UTM: 81760E 00360N Loraine Yeatts 3298. 21 Jun 1992. ( COLO00442202 ) Growing in Cercocarpus montanus shrubland. West side of S. Table Mt. Stanley Smookler 42. 13 Jun 1992. ( COLO00442079 ) . .

Mentzelia dispersa S. Watson.  (Syn: Acrolasia dispersa (S. Watson) Davidson ) Bushy Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; W. facing boulder strewn slope at edge of assoc. taxa community; rare, only 3 plants locally. South Table Mountain, just below Castle Rock. 13N 0481900E 4400400N. Loraine Yeatts 3297. 21 Jun 1992. ( KHD29553 ) A lava capped mesa in the Denver Formation; on open area of W. facing steep slope (20 -30° gradient) below Castle Rock ca. 0.75 of the way up from the base of Table Mt. in thin rocky, pebbly & sandy soil; only a few plant locally., With Acrolasia albicau South Table Mountain; 0.75 of the way up from the base of Table Mt. 13N 0481900E 4400400N. Stanley Smookler 43. 13 Jun 1992. ( COLO00442822 KHD29552 ) . .

Mentzelia speciosa Osterh.  (Syn: Nuttallia speciosa (Osterh.) Greene ) Plains Blazing Star. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, S. Table Mt., a lava capped mesa in the Denver Formation. S. facing slope just W. of Quaker Rd. below mesa rim; several plants scattered on 1980 burn site. 13N 0484293E 4398527N. Loraine Yeatts 652. 1 Jun 1983. ( COLO00444976 CS90252 KHD21136 ) [ KHD21136 is determined M. speciosa, whereas COLO418677 and CS90252 are determined M. nuda. ] .

Malvaceae

Sphaeralcea coccinea (Nutt.) Rydb.  Scarlet Globemallow. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, 4 plants, flowers just beginning to open. Tom Schweich 5/24/2018. Lower northeast slopes of North Table Mountain, on North Table Loop, near the Neighborhood Access Trail on West 53rd Drive. Tom Schweich 1649. 1 Jun 2017. ( CDA Golden JCOS s.n. KHD00065370 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on steep clay slope with sparse grass; occasional and widespread. South Table Mountain. 13N 0484200E 4399200N. Loraine Yeatts 598. 27 Jun 1983. ( KHD21137 ) In wet meadow. S. Table Mt. Loraine Yeatts 613. 29 Jun 1983. ( CS79993 ) .

Montiaceae

Claytonia rosea Rydb.  Rocky Mountain Springbeauty. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Slope under ponderosa pine. Tom Schweich 4/18/2019. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, near the northern edge of the property and the Boulder County boundary, grassland in a ponderosa pines woodland, 23.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2027. 26 May 2019. ( Golden OBI ) Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south parcel, grassland with a few ponderosa pines, 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich, with Irene Weber 2020. 24 Apr 2019. ( Golden ) .

- North Table Mountain Park, East to northeast-facing grassy slope. Along the North Table Loop, southeast side of North Table Mountain, approximately 0.5 km west of the Neighborhood Access Trail trailhead at Ridge Road and Ulysses Avenue, 2.6 km northeast of the GNIS location of Golden. Tom Schweich 1312. 12 Apr 2016. ( CAS CS JCOS s.n. KHD00064105 OBI83161 ) .

- Ranson/Edwards Homestead Open Space Park, Widely scattered among grassy areas in recently burned Ponderosa pine woodland. Common across a wide area but never in dense clusters. Just north of Plainview Road, 2.1 miles by road north of the intersection of Plainview Road and Colorado State Highway 72, Coal Creek Canyon Road. Tom Schweich 1076. 23 Mar 2015. ( JCOS s.n. KHD56960 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; N facing gully; on slope at head of gully under dense cover; locally sbundant but not found on E, S or W slopes. South Table Mountain, first N facing gully E of Castle Rock. 13N 0483180E 4400850N. Loraine Yeatts 1387. 23 Apr 1987. ( COLO 00619726 KHD24515 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. Steep east-facing slope, numerous plants around edges of Rhus aromatica shrubs. Lower slopes of Lookout Mountain, hillside above Colorado School of Mines Survey Field, 2.23 km southwest of the GNIS location of Golden. Tom Schweich 1307. 9 Apr 2016. ( JCOS s.n. KHD00064106 UC UCR277957 ) . .

Phemeranthus parviflorus (Nutt.) Kiger.  Sunbright. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Tom Schweich 6/12/2017. .

- Ranson/Edwards Homestead Open Space Park, Muddy flat with sheet flow water. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. Tom Schweich 1689.1 28 Jun 2017. ( KHD00065581 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation. In gravelly lava rock pockets on flat lying bedrock rim. Local population of 30-40 plants & only seen on mesa; with Paronychia jamesii, Artemisia frigida. Front Range, S. Table Mt. Bedrock rim at head of only N facing gully on N side of mesa. UTM: 830E 004N Stanley Smookler 31 Sug 1990. ( COLO00623421 ) Habitat: A lava capped mesa in the Denver Formation; in gravelly lava rock pockets on flat lying bedrock rim at head of only N. facing gully on N side of mesa; only place seen on mesa. Colorado, Jefferson, South Table Mountain, Front Range 39.75556 -105.21 Stanley Smookler 25. 31 Aug 1990. ( KHD28959 ) .

Myrsinaceae

Lysimachia ciliata L.  Fringed Loosestrife. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, cauline, opposite, petiole, 12 mm., sparsely long ciliate, blade, 72 mm. × 26 mm. wide, lanceolate, glabrous, margin minutely ciliate; Inflorescence, axillary, flowers borne singly on long pedicels; Pedicel, 30 mm.; Sepals, #5, 4 mm.; Petals, #5, 7 mm. × 6 mm. wide, free ≥½length, yellow; Stamens, #5, alternate; Filaments, 2 mm., attached near base; Anthers, 2 mm.; Ovary, superior; Style, #1, 3 mm., lengthening to 4 mm. at maturity; Fruit, 3 mm. × 3 mm. dia., globose, bluish. Described from Coll. No. 1723, 28 Jul 2018.

- Ranson/Edwards Homestead Open Space Park, In the bank of a small stream. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 610 meters a little north of west along a small ephemeral stream. Tom Schweich 1723. 28 Jul 2017. ( Golden JCOS s.n. KHD00065329 UCR ) In the bottom of a small ravine with a trickle of runnng water; frequently used by resting elk. Highest plains above Rocky Flats, 1.7 mi. west on CO Highway 72 from CO Highway 93, 1.5 mi. generally north on Plainview Road, then about 260 m. north, 15.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1977.2 13 Jul 2018. ( COLO02347466 OBI ) .

Nyctaginaceae

Mirabilis linearis (Pursh) Heimerl.  (Syn: Oxybaphus linearis (Pursh) B. L. Robinson ) Narrowleaf Four O'Clock. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 1 m.; Stem, ascending through brush, glabrous below; Leaves, cauline, alternate, sessile, 90 mm. × 5 mm. wide, linear; Involucre, 15 mm., hairs with pale crosswalls; Flowers, 3 per involucre; Fruit, 4 mm. × 2.2 mm., obovate, ribs 4, hairy. Described from Coll. No. 1273, 30 Jul 2015.

- South Table Mountain, A lava capped mesa in the Denver Formation; on steep E. facing roadcut; uncommon. South Table Mountain; along Quaker Road. 13N 0484200E 4399300N. Loraine Yeatts 769. 7 Aug 1983. ( COLO00456525 KHD21175 ) . .

Mirabilis nyctaginea (Michx.) MacMill.  (Syn: Oxybaphus nyctagineus (Michx.) Sweet ) Heartleaf Four O'Clock. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Gently sloping grassland meadow above minor drainage with Psoralidum tenuiflorum, Anisantha tectorum, Alyssum parviflorum,Cylindropyrum cylindrica, Chondrosum graciin zone lining lower part of sloping drainage bank between Prunus americana thickets; with Clayey silt and sand of Piney Creek alluvium. South Table Mountain; NREL property, outwash of gully leading to mesa rim. 13N 0485500E 4398942N. Loraine Yeatts, with Maureen O'Shea Stone 4609. 28 Jun 2001. ( COLO00573923 KHD37024 ) .

Onagraceae

Epilobium brachycarpum C. Presl.  Autumn Willow Herb. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1040, 15 Sep 2013, characters observed while keying: Late-season annual, from taproot, to 1 m, not glandular; Leaves, opposite at base, alternate above, stipules 0, petiole 4 mm + blade 46 mm × 6 mm wide, folded along mid-rib, toothed, glabrous; Flowers, parts in 4s; Sepals, 4.5 mm, deciduous after flowering; Hypantheum, 13 mm; Petals, 9.5 mm, notched; Ovary inferior; Stamens, in 2 unequal whorls of 4; Seeds, 1.3 mm, hair tufted, bug eaten.

- Lippincott Property, Also collected here: Grindelia squarrosa, Heterotheca foliosa, Pericome caudata, Senecio spartioides, and Nepeta cataria. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, among boulders on the south side of Bull Gulch, 22.9 km. north northwest of the GNIS location of Golden. Tom Schweich 2218. 29 Aug 2019. ( Golden OBI ) .

- Ranson/Edwards Homestead Open Space Park, Relatively moist area, but not quite a wetland. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, then 860 m. west of Plainview Road, nearing the railroad tracks at the top of the park. Tom Schweich 1286.1 28 Aug 2015. ( KHD00061540 ) High plains above Rocky Flats, 1.7 mi. west on Colorado Highway 72 from Colorado Highway 93, 1.6 mi. north on Plainview Road, then 100 meters west in a small watercourse above the road. Tom Schweich 1772. 1 Sep 2017. ( Golden JCOS s.n. KHD00065403 UCR ) . .

Epilobium ciliatum Raf.  Fringed Willowherb. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Relatively moist area, but not quite a wetland. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, then 860 m. west of Plainview Road, nearing the railroad tracks at the top of the park. Tom Schweich 1286. 28 Aug 2015. ( JCOS s.n. KHD00062050 UCR267483 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; in water seeping over rocks at head of gentle gully; locally abundant. South Table Mountain. 13N 0483900E 4399400N. Loraine Yeatts 709. 16 Jul 1983. ( KHD21179 ) A lava capped mesa in the Denver Formation; in seeping water at head of gully; locally abundant and variable in size. South Table Mountain. 13N 0483300E 4399600N. Loraine Yeatts 749. 27 Jul 1983. ( COLO00465104 KHD21178 ) . .

Gaura coccinea Pursh.  (=Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch) CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. J. Reseigh 7. 1 Jun 2000. ( CS80220 ) . .

Oenothera albicaulis Pursh.  Whitest Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; On mesatop in mesa, tall grass; rare. South Table Mountain. 13N 0484100E 4399800N. Loraine Yeatts 584. 24 Jun 1983. ( KHD21174 ) A lava capped mesa in the Denver Formation. Mesatop, uncommon. South Table Mtn. UTM: 835995. Loraine Yeatts 634. 3 Jul 1983. ( COLO00471912 ) A lava capped mesa in the Denver Formation; Se fcing slope on lava bedrock; several plants in imediate vicinity; but only occasional in similar habitats on mesa. South Table Mountain. 13N 0484100E 4399600N. Loraine Yeatts 1266. 23 May 1986. ( KHD24225 ) . .

Oenothera brachycarpa A. Gray.  Short-Fruit Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, large patch. South Table Mountain. Along Quaker Rd. just S. of Golden Hills Rd. 13N 0484299E 4398772N. Loraine Yeatts 647. 5 Jul 1983. ( KHD21173 ) . .

Oenothera caespitosa Nutt.  Tufted Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; on rocky S. facing gentle slope; relatively common and widespread. South Table Mountain, along E.-W. road of Quaker gate. 13N 0484200E 4399500N. Mary E. Edwards 413. 1 Jun 1983. ( KHD21177 ) . .

Oenothera caespitosa Nutt. ssp. macroglottis (Rydb.) W.L. Wagner.  Tufted Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1407, 8 Jun 2016, characters observed: Perennial herb, to 20 cm., glabrous, except as noted; Stem, short, to 4 cm., but definitely there; Leaves, petiole, 90 mm., blade, 90 mm. × 28 mm. wide, oblanceolate, margin toothed, straight hairy; Buds, sparsely hairy on veins; Flowers, solitary in axils, floral tube 100 mm., petals, 37 mm., yellowish, most drying purplish; Stigma, 4-lobed; Capsule, 27 mm. × 5 mm. wide, valve ridges not tuberculate. The leaves are toothed and not deeply lobed or deeply toothed, and there are no tubercules on the valve ridges of the capsules. Therefore, I am using var. macroglottis rather than var. marginata. (Described from Coll. No. 1407, 8 Jun 2016).

- North Table Mountain Park, On the bank of a spoils pile from the basalt quarry, west-facing slopes. Most petals dried pink, a few remained yellowish. Southwest portion of the top of North Table Mountain, across the North Table Loop from a large basalt quarry, 2.2 km. north of the GNIS location of Golden. Tom Schweich 1407. 8 Jun 2016. ( COLO02348340 CS JCOS s.n. KHD00063834 ) . .

Oenothera caespitosa Nutt. ssp. marginata (Hook. & Arn.) Munz.  Tufted Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

Caespitose annual or short-lived perennial herb, to 10 cm.; Leaves, mostly basal, petiole 44 mm. + blade 33 mm. × 14 mm. wide, ovate, margins entire and toothed; Buds erect; Corolla, 32 mm., limb 56 mm., white, fading lavender; Anthers versatile, attached in middle; Pollen, with viscin threads; Stigma, lobes, 4; Fruit, unknown, fortunately not necessary to key in Taylor (2010), though required in most other floras. Described from Coll. No. 1166, 24 Jun 2015.

- South Table Mountain, Forming clumps on S. facing clay slope. Relatively common. S. Table Mt. On S. facing clay slope just W. of Quaker Rd. UTM: 842993. Loraine Yeatts 501. 24 May 1983. ( COLO00474544 ) . .

Oenothera coronopifolia Torr. & A. Gray.  Crownleaf Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- Clear Creek Canyon Park, Grassy slopes. Tom Schweich 4/27/2018. . .

Oenothera curtiflora W.L. Wagner & Hoch.  (Syn: Gaura mollis James, nom. rej. , Gaura parviflora Douglas ex Lehm. ) Velvet Butterfly-Weed. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Lowest north slopes of North Tab;e Mountain, along the Mesa Spur Trail, 0.6 km. south of 58th Avenue, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1505. 22 Jul 2016. ( EIU JCOS s.n. KHD00063948 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; along road; relatively common. South Table Mountain, along Quaker Road, near mesa top gate. 13N 0484300E 4399600N. Loraine Yeatts 650. 5 Jul 1983. ( COLO00469478 KHD21180 ) . .

Oenothera howardii (A. Nels.) W. L. Wagner.  Howard's Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, Lava-capped mesa. South Table Mountain, top of E-facing roadcut along Quaker Rd. Loraine Yeatts 615. 30 Jun 1983. ( CS81664 ) W facing slope. S Table Mt. Along winding trail S of Castle Rock 300 yds. Uphill from jct. 18th st. and Belvidere. Peter G. Root 8313. 1 Jul 1983. ( COLO00478875 CS79439 ) . .

Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch.  (Syn: Gaura coccinea Pursh , Gaura glabra Lehm. ) Linda Tarde. CalPhotos. Jepson eFlora. SEINet Taxon.

Herbaceous perennial, to 60 cm.; Stipules absent; Leaves alternate, 25 mm. x 5 mm., lanceolate, few toothed; Inflorescence straight, open; Bracts 2-3 mm.; Buds erect; Sepals fused to tip in bud, all coming free, reflexed, 6 mm., not persistent after flowering; Hypanthium 6 mm.; Petals entire; Stamens 8, < stigma; Anthers maturing in unison with stigma; Ovary at flowering > distal internode (ergo infl. "open"); Stigma 4-lobed; Fruit 7 mm., stalk-like base 0, erect, fusiform, gradually wider at middle, puberulent, indehiscent; Seeds few, 2 mm., glabrous, not winged (Decribed from Coll. No. 317, keyed 15 Dec 2012).

- North Table Mountain Park, Short grass with Cercocarpus montanus, Artemisia frigida, and A. ludoviciana. Northwest section of North Table Mountain, on a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.28 km. north of the GNIS location of Golden. Tom Schweich 1656. 5 Jun 2017. ( CS JCOS s.n. KHD00065486 ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 mi. west on CO Highway 72, Coal Creek Canyon Road, from CO Highway 93, 0.8 mi. generally north on Plainview Road, then 250 m. a little south of east on a gasline access road to a terrace overlooking Coal Creek. Tom Schweich 1920. 3 Jun 2018. ( JCOS s.n. KHD00069138 ) .

- South Table Mountain, A lava capped mesa in the Denver formation. On bare clay. S. Table Mountain, just W. of Quaker road below mesatop. UTM: 842993. Loraine Yeatts 583. 16 Jun 1983. ( COLO00469346 ) . .

Oenothera villosa Thunb.  Hairy Evening Primrose. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 25 cm., ±straight hairy throughout; Stem, eglandular, villous, hairs with red pustular bases; Leaves, cauline, alternate, sessile, 55 mm. × 12 mm. wide, elliptical, reduced above, entire, very shallowly toothed; Inflorescence, leafy bracteate spike; Sepals, #4, 13 mm., reflexed; Floral tube, 24 mm.; Petals, #4, 9 mm. × 5 mm. wide, yellow fading pink, obovate, entire; Stigma, lobes #4; Capsules, 25-33 mm.; Seeds, 0.8 mm., squarish, glabrous throughout. Described from Coll. No. 1271, 29 July 2015.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.8 km north northeast of Golden, 1.4 miles north of CO State Highway 72 on Plainview Road, 104 m. northeast of Plainview Road. Tom Schweich 1271. 29 Jul 2015. ( JCOS s.n. KHD00062052 ) High plains above Rocky Flats, single plant growing in delatic gravels of small ephemeral stream entering pond. Northern part of open space, 1.6 mi. west on CO Highway 72 from CO Highway 93, north 1.9 mi. on Plainview Road, then 700 m. downhill to northeast to a small reservoir; 16.3 km. north northwest of the GNIS location of Golden. Tom Schweich 1516. 24 Jul 2016. ( EIU JCOS s.n. KHD00063837 OBI83333 ) with Asclepias speciosa, Rosa arkansana, Solidago, and Phleum. Probably var. strigosa if infra-specific names are to be applied. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 865 meters west into open prairie, nearly to the railroad tracks. Tom Schweich 1719. 28 Jul 2017. ( Golden UCR ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; dranaige through gentle slope above NE facing gully; lants forming patches. South Table Mountain, overlooking Rolling Hill Country Club. 13N 0484000E 4400300N. Loraine Yeatts 1086. 18 Sep 1984. ( KHD20618 ) .

Orobanchaceae

Castilleja integra A. Gray.  Wholeleaf Indian Paintbrush. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 30 cm.; Stem, tomentose throughout; Leaves, cauline, sessile, 90 mm. × 5 mm., narrowly lanceolate, entire; Bracts, 36 mm. × 11 mm., elliptic to oblanceolate, entire, green at base to red-orange; Calyx, tube 25 mm. + cleft below 10 mm. = 35 mm., cleft above 8 mm., light green to tips red-orange; Corolla, 36 mm. Described from Coll. No. 1143, 15 Jun 2015.

- North Table Mountain Park, Rocky ground. Northern portion of North Table Mountain, 200 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1230. 20 Jul 2015. ( JCOS s.n. KHD00061514 UC UCR267456 ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 410 m. north of Plainview Road. Tom Schweich 1379. 29 May 2016. ( CS JCOS s.n. KHD00063827 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation. Relatively common. S. Table Mt., just W. of Quaker Rd. on mesatop at edge of S. facing slope. UTM: 842993 Loraine Yeatts 676. 11 Jul 1983. ( COLO00743427 ) A lava capped mesa in the Denver Formation; Se facing hillside; mixed lava bedrock and soil; realtively common and widespread on mesatops and slopes. South Table Mountain; NW of Quaker Road gate. 13N 0484200E 4399700N. Mary E. Edwards 417. 1 Jun 1983. ( KHD21691 ) . .

Castilleja sessiliflora Pursh.  Downy Paintedcup. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, On the upper bank, south side of a small creek, 75 meters east of Plainview Road, and 1.2 miles north on Plainview Road from Colorado State Highway 72. Tom Schweich, with Matt Schweich 1089. 25 Apr 2015. ( JCOS s.n. KHD56955 ) . .

Orobanche fasciculata Nutt.  (Syn: Aphyllon fasciculatum (Nutt.) Torr. & A. Gray ) Clustered Broomrape. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Openings among Cercocarpus montanus Tom Schweich 6/5/2017. Rare, southwest facing slope. Small canyon draining the northwest side of North Table Mountain, about 160 m. upslope of the North Table Loop, 3.5 km north of the GNIS location of Golden. Tom Schweich 1386. 1 Jun 2016. ( KHD00063842 ) .

- South Table Mountain, On mesatop in tall grass; common. Plants parasitic on Artemisia frigida. S Table Mt. Loraine Yeatts 585. 24 Jun 1983. ( CS79084 ) A lava capped mesa in the Denver Formation. On flat lava bedrock with Artemsia frigida. South Table Mountain. 13N 0484096E 4398688N. Loraine Yeatts 612. 29 Jun 1983. ( COLO00488908 KHD21172 ) . .

Orobanche uniflora L.  (Syn: Aphyllon uniflorum (L.) Torr. & A. Gray , Orobanche uniflora L. var. uniflora ) Naked Broomrape. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Single stem, O. uniflora assumed. Tom Schweich 7/13/2019. .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, then 1.4 mi. north on Plainview Road. 15.8 km. north northwest of the GNIS location of Golden. Tom Schweich 1372. 29 May 2016. ( KHD00063825 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on mesa top near W. edge; only place seen. South Table Mountain. 13N 0482800E 4400400N. Loraine Yeatts 540. 1 Jun 1983. ( COLO 00489179 KHD21176 ) .

Oxalidaceae

Oxalis stricta L.  Common Yellow Oxalis. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, On a gravel and sand bar in Coal Creek. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.1 mile north on Plainview Road, then 550 m. east northeast to Coal Creek. Tom Schweich 1676. 19 Jun 2017. ( KHD00065366 ) .

Papaveraceae

Argemone polyanthemos (Fedde) G.B. Ownbey.  Crested Prickly Poppy. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, South side of North Table Mountain, along the Climbing Access Trail just below the uppermost basalt flow; 224 m. southeast of the USBR monument designated “North Table,” 1.44 km. north northeast of the GNIS location of Golden. Tom Schweich 1522. 5 Aug 2016. ( COLO02347946 JCOS s.n. KHD00063630 UC ) .

- South Table Mountain, relatively common and widespread South Table Mountain. On S. facing clay slope just W. of Quaker Rd. 13N 0484299E 4398763N. Loraine Yeatts 626. 3 Jul 1984. ( COLO00490680 KHD21181 ) E-facing slope. On Jeff Co. Open Space land, S. Table Mt. Mary E. Edwards 393. 1 Jul 1983. ( CS79991 ) .

Phrymaceae

Erythranthe floribunda (Douglas ex Lindl.) G. L. Nesom.  (Syn: Mimulus floribundus Lindl. ) Many Flowered Monkey Flower. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 45 mm.; Stems, gland-tipped hairs; Leaves, cauline, opposite, petiole, an indistinct 0.4-0.7 mm. to a distinct 1.5 mm., blade, 8 mm. × 4.5 mm. wide, palmately veined, margin, entire to few-toothed; Calyx, tube 3.5 mm., + lobes 0.5 mm., uppermost lobe not longer, more like bottom two lobes are shorter, margins sparsely ciliate; Pedicels, 15-16 mm., glandular; Corolla, 6 mm. × 2 mm. dia., throat open, lobes, 1 mm., upper lobe ±=others, limb 3.7 mm., yellow. Described from Coll. No. 1688, 28 June 2017.

- North Table Mountain Park, Common in dry mud, covering flat-lying, thin layered outcrops of latite basaltic rock, and growing in association with moss; a lava capped mesa overlying sediments of the Denver formation. Top of North Table Mountian, Mountain lies just east of the town of Golden. 13N 0481952E 4403212N. Stanley Smookler 175. 24 May 1998. ( KHD37771 ) In a watercourse that drains an ephemeral pond south to Clear Creek. Top of North Table Mountain, southwest quadrant, 2.22 km. north of the GNIS location of Golden. Tom Schweich 1930. 8 Jun 2018. ( OBI170958 ) Growing in running water at the junction of two small ephemeral streams. Southern rim of North Table Mountain, adjacent to North Table Loop, head of unnamed canyon draining southeast to Clear Creek, 1.84 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1448. 22 Jun 2016. ( CAS CS JCOS s.n. KHD00063983 UCR278009 ) .

- Ranson/Edwards Homestead Open Space Park, Muddy flat with sheet flow water. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. Tom Schweich 1688. 28 Jun 2017. ( KHD00065369 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; at head of SW facing gully with flowing water; locally abundant in patches and widespread in wet areas on mesa. South Table Mountain. 13N 0482600E 4400200N. Loraine Yeatts 545. 1 Jun 1983. ( KHD21760 ) On mesatop with tall grass in very wet meadow; abundant in most swampy areas on mesa. A lava capped mesa in the Denver Formation. S. Table Mt. UTM: 839997 Loraine Yeatts 623. 29 Jun 1983. ( COLO00752394 ) A lava capped mesa in the Denver in flat-lying meadow; extension & N. of S. facing rimrock, in narrow zone of vegetation ringing small barren depression which puddles briefy after rain; locally abundant. South Table Mountain, W of Quaker Road. 13N 0482400E 4399400N. Loraine Yeatts 3275. 31 May 1992. ( KHD29583 ) .

Plantaginaceae

Besseya plantaginea (James) Rydb.  (=Synthyris plantaginea (James) Benth.) White River Kittentails. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Northwest facing forested slope. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, south of Bull Gulch approximate centroid of parcel, 22.6 km. north northwest of the GNIS location of Golden. Tom Schweich 2036. 26 May 2019. ( Golden ) Northwest slope, deep shade. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.5 km. north northwest of the GNIS location of Golden. Tom Schweich 2066. 6 Jun 2019. ( Golden ) . .

Callitriche palustris L.  (Syn: Callitriche verna L. ) Vernal Star Wort. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Also collected nearby: Lithospermum occidentale, Sisyrinchium montanum, and Amorpha fruticosa. High plains above Rocky Flats, west 1.7 mi. on CO Hwy 72 from CO Hwy 93, generally north 1.0 mi. on Plainview Road, then 225 m. east to a small stream, 19.4 km. north northeast of the GNIS location of Golden. Tom Schweich 2121. 6 Jul 2019. ( Golden OBI ) . .

Collinsia parviflora Lindl.  Maiden Blue-eyed Mary. CalPhotos. Jepson eFlora. SEINet Taxon.

Described in Ackerfield (2015) as glabrous below and usually glandular in the inflorescence. At Lippincott (#2016), they are variously puberulent and not glandular. One species of Collinsia is recognized in Colorado, whereas seventeen species are recognized in California. Baldwin, et al., 2011 is the current publication on phylogeny of the genus.

- Lippincott Property, Forming carpets under trees in ponderosa pine woodland. Collected with Draba nemorosa and Capsella bursa-pastoris. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, approximate center of property. 21.8 km. north northwest of the GNIS location of Golden. Tom Schweich 2016. 18 Apr 2019. ( Golden ) .

- Mount Falcon Park, 114 m northwest of Mount Falcon, 14 km south of Golden. Tom Schweich 1127. 1 Jun 2015. ( JCOS s.n. KHD56966 UCR266083 ) .

- South Valley Park, Tom Schweich 5/20/2020. .

- South Table Mountain, A lava capped mesa in the Denver Formation; on east-facing slope; abundant ground cover, with Alyssum minus under Cercocarpus montanus. South Table Mountain, W of Quaker Road on E facing slope of hill 6020. 13N 0484200E 4399000N. Loraine Yeatts 1386. 16 Apr 1987. ( COLO00750463 KHD24514 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Gratiola neglecta Torr.  Clammy Hedge Hyssop. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Intermittent streambed on summit. (Coordinates ±1000m. — Ed.) North Table Mesa, ca. 1.5 mi. NE of Golden. TRS: T3S R70W SEC22 Rick Brune 24 May 1992. ( COLO00751180 ) Drying mud. Top of North Table Mountain, south-central area, in a natural ephemeral pond that has been enhanced by a small rock dam, 2.35 km. north northeast of the GNIS location of Golden. Tom Schweich 1933. 8 Jun 2018. ( JCOS s.n. KHD00069224 ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 280 meters northwest to a small reservoir on an ephemeral stream. Tom Schweich 1729. 28 Jul 2017. ( JCOS s.n. KHD00065325 UCR ) . .

Linaria canadensis (L.) Dum.-Cours. var. texana (Scheele) Pennell.  (Syn: Nuttallanthus texanus (Scheele) D. A. Sutton ) Blue Toadflax. CalPhotos. Jepson eFlora. SEINet Taxon.

- White Ranch Park, In rocky soil on south facing slope of the foothills; locally common. USA, Colorado, Jefferson County, Front Range, White Ranch, Sawmill Trail. Loraine Yeatts 4901. 11 Jun 2003. ( COLO00925214 KHD38943 ) . .

Linaria genistifolia (L.) Mill. ssp. dalmatica (L.) Maire & Petitm.  (=Linaria dalmatica (L.) Mill.) Dalmatian Toadflax. CalPhotos. Jepson eFlora. SEINet Taxon.

- Matthews/Winters Park, Rocky hillside on the north side of Hwy 40. T4S R70W Sec 15. Stephen B. Austin 359. 1 Jun 2000. ( MESA1616 ) . .

Penstemon Schmidel.  Beard Tongue. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, possibly P. virgatus Tom Schweich 6/19/2017. . .

Penstemon gracilis Nutt.  Lilac Penstemon. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Valley Park, 1 ft tall perennials with pale blue irregular flowers scattered to common Verbatim Coordinates: 13 0487448E 4379864N from US 6 in Golden area, take C-470 S and exit W on Ken Caryl Rd. Turn left onto South Valley Rd to the Park's north parking area. Hiking Swallow trail, the collection site is located 1/2 mi S from trailhead Stanley Smookler, with Linda Senser 431. 4 Jul 2003. ( KHD43503 ) . .

Penstemon secundiflorus Benth.  Sidebells Penstemon. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., caulescent, eastern slope; Leaves, opposite, well-spaced, sessile, 66 mm. × 23 mm. wide, lanceolate, entire, glaucus; Inflorescence, axis glabrous, not glandular-hairy, flowers mostly on one side of the stem; Calyx, 5 mm., with purple-tinged sinus tissue; Flowers, 18 mm., magenta; Stamens, inserted; Staminode, 1.8 mm. wide at tip, hairy; Anther, sacs, glabrous on side opposite dehiscence. (Described from Coll. No. 1120, 28 May 2015.)

- Matthews/Winters Park, Shrub-grassland on east-facing slope with Cercocarpus montanus, Yucca glauca and Chrysothamnus sp. Mathew-Winters Open Space Park, S of Golden on Hwy 93. UTM: 13S 0482509 4393659. N. Breiter 8 Aug 2004. ( COLO00810861 ) .

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. J. Reseigh 24. 2 Jun 2000. ( CS80211 ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 150 m. east of Plainview Road. Tom Schweich 1120. 28 May 2015. ( JCOS s.n. KHD56971 ) .

- South Table Mountain, On bare clay slope of recent burn site below S. facing mesa rim. Abundant & widespread. A lava capped mesa in the Denver Formation. S. Table Mt. Just W. of Quaker Rd. below S. facing mesa rim. UTM: 842993. Loraine Yeatts 581. 16 Jun 1983. ( COLO00769927 ) A lava capped mesa in the Denver Formation; E facing side of mesa below rim; only a few scattered plants but widespread on mesa slopes and top. South Table Mountain, South Table Mountain, Jefferson County Open Space land. 13N 0486300E 4399900N. Mary E. Edwards 438. 12 Jun 1983. ( KHD21700 ) . .

Penstemon virens Pennell ex Rydb.  Front Range Beardtongue. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial terrestrial herb, of eastern slope and Front Range, ascending 16-30 cm. from horizontal rooting stem; Stem proximally glabrous to finely pubescent to finely pubescent medially, (supposedly in lines but not clearly so to me) becoming gland-tipped hairs distally; Leaves, “basal” and cauline, glabrous, “basal,” crowded around sprouts from horizontal stems, petiole, 20-30 mm., + blade, 30-35 mm. × 7-13 mm. wide, ovate to oblanceolate, entire, tip acute to mucronate, puberulent adaxially, cauline, opposite, petioled 8 mm. to sessile distally, 20-30 mm. × 4-8 mm. wide, lanceolate, margin entire to finely irregularly serrate distally; Inflorescence, thryse or cymose(?), 35-100 mm. × 30 mm. wide, 8 to 12 flowers per node, leaves and bracts much reduced, glandular; Pedicels, 3 mm., with gland-tipped hairs; Calyx, tube 2 mm. + #5 lobes 2-3 mm. = 4-4 mm., margins green, tips acute; Flowers, zygomorphic, parts in 5s, not spurred; Corolla fused at base, purple to blue-violet, 10-15 mm., lobes 2-3 mm., limb 10 mm., outer surface glabrous to glandular-pubescent; Stamens, #4, 10 mm., included, Staminode #1, yellow-orange, not enlarged at tip, hairy in terminal 2 mm.; Anther, 1.2 mm., purple, sacs papillate; Ovary, 2 mm. × 1.5 mm. wide, ovate, dark purplish-brown; Style, 9 mm.; Stigma, simple; Fruit, capsule. (Described from Coll. Nos. 1107, 1121, and 1910.)

- Lippincott Property, Highest Great Plains meets the Rocky Mountain Front Range, southern edge of a small meadow in a saddle, parcel disturbed by cattle grazing and clay mining. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.2 km. north northwest of the GNIS location of Golden. Tom Schweich 2062. 6 Jun 2019. ( Golden ) With mixed grasses and forbs in a gently sloped ponderosa pine woodland. Narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2078. 17 Jun 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 150 m. east of Plainview Road. Tom Schweich 1121. 28 May 2015. ( JCOS s.n. KHD56972 ) .

- South Table Mountain, Uncommon on W. facing slope; associated with Cercocarpus montanus. A lava capped mesa in the Denver Formation. Near gully S. of Castle Rock. S. Table Mt. UTM: 821001 Loraine Yeatts 874. 21 May 1984. ( COLO00772079 ) In patches among rocks. S. Table Mt., on E side of mesa. Mary E. Edwards 437. 12 Jun 1983. ( CS79992 ) . .

Penstemon virgatus A. Gray var. asa-grayi (Crosswh.) Dorn.  Upright Blue Beardtongue. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, South Table Mountain, near intersection of Quaker and Foothills Roads. 13N 0484200E 4398800N. Loraine Yeatts 624. 3 Jul 1983. ( COLO00772327 KHD21701 ) A lava capped mesa in the Denver Formation; gently sloping meadow; one plant locally, not observed in any other location on South Table Mountain. South Table Mountain, E of knob 6202 and W of Quaker Road extension. 13N 0484220E 4398920N. Loraine Yeatts 4269. 4 Jul 1999. ( KHD33739 ) In shrub island of Symphoricarpos occidentalis below grassy slope and possible seep area; with Onosmodium molle, Cardus nutans, Rosa arkansana, Linaria genistifolia spp. dalmatica, Ratibida columnifera, Bromopsis inermis, Geranium caespitosum. Tertiary-Cretaceous swelling clay of Denver Formation. Front Range, South Table Mt., NREL property on S side of mesa below rim. UTM: 13N 0485480E4899240N Loraine Yeatts, with Maureen O'Shea-Stone. 4611. 28 Jun 2001. ( COLO00772616 KHD37036 ) . .

Plantago lanceolata L.  Narrowleaf Plantain. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 55 cm., scapose; Leaves, basal, 22 cm. × 1.5 mm. wide, lance-elliptic, glabrous; Inflorescence, spike, 42 mm. × 6-7 mm. wide, slightly wider at base; Sepals, outer two connate, 3 mm., mid-rib strong green, villous-ciliate distally; Corolla, scarious, lobes, #4, 2 mm. Described from Coll. No. 1217, 16 Jul 2015.

- Lippincott Property, Lowest slopes of hogback, among ponderosa pines, also collected here: Crataegus succulenta, Nassella viridula, and Potentilla fissa. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, west of the clay pit and adit, 22.1 km. north northwest of the GNIS location of Golden. Tom Schweich 2147. 13 Jul 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 95 m. east of Plainview Road. Tom Schweich 1217. 16 Jul 2015. ( JCOS s.n. KHD00061518 UC UCR267686 ) . .

Plantago major L.  Common Plantain. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 1843. 17 May 2018. ( Golden ) . .

Plantago patagonica Jacq.  Woolly Plantain. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, herb, to 10 cm., drying light green; Leaves, basal rosette, 55 mm. × 2.5 mm., narrowly oblanceolate, entire; Peduncle, 55 mm., not grooved, hairs ascending (not spreading), diameter >> than leaf hairs, Inflorescence, scapose, 10-12, in single terminal spikes, axis not visible between flowers; Bract, linear, 1-2 × calyx, exserted; Flower, bisexual, Corolla, lobes 1.8 mm., 1 erect, 3 spreading, tube glabrous (should be hairy); Stamens, 4, inserted; Style 1.2 mm.; Fruit, 2.5 mm Seeds 2, 1.4 mm., inner side deep concave (much easier to dissect fruit and examine seeds when dry, rather than when wetted with Pohl's solution, Described from Coll. No. 281, 24 April 2001).

- North Table Mountain Park, In thin soils or cracks of basalt caprock, near the edge of prairie dog town. Top of North Table Mountain, along an old road and former powerline headed about 600 m. north to a radio tower, 2.6 km. north of the GNIS location of Golden Tom Schweich 1490. 13 Jul 2016. ( CS EIU JCOS s.n. KHD00063803 ) Small, dry gravelly bar between two small watercourses. Lowest west slopes of North Table Mountain, between CO Highway 93 and North Table Loop, 3.53 km. north of the GNIS location of Golden. Tom Schweich 1882. 24 May 2018. ( JCOS s.n. ) .

- South Table Mountain, South Table Mountain, S. of pond. 13N 0483400E 4399300N. Janet L. Wingate 2522. 12 Jul 1983. ( KHD19307 ) A lava capped mesa in the Denver Formation; saddle; forming ground cover; locally abundant. South Table Mountain, SE of Castle Rock.. 13N 0483230E 4400400N. Loraine Yeatts 654. 8 Jul 1983. ( COLO00493288 KHD21655 ) A lava capped mesa in the Denver Formation; widespread and abundant. South Table Mountain, along old road, 1/4 mile NW of quarry-firing range. 13N 0483200E 4400300N. Peter G. Root 8318. 17 Jul 1983. ( KHD21271 ) . .

Veronica americana (Raf.) Benth.  American Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, decumbent, glabrous; Leaves, short-petioled (1.5-3.0 mm.), ovate, 30 mm. × 17 mm. wide, length 1.8 × width; Inflorescence, axillary, racemes opposite; Bracts, 6 mm., wider than linear; Pedicels, 4-6 mm.; Flowers, 15-20 per raceme; Sepals, 2 mm. at flowering, 2.5-3.5 mm. at fruit (Described from Coll. No. 1024, 24 July 2013).

- South Table Mountain, A lava capped mesa in the Denver Formation; in seep below bedrock mesa rim; relatively common locally. South Table Mountain. 13N 0483960E 4399410N. Loraine Yeatts 3153. 11 Sep 1991. ( KHD29288 ) . .

Veronica anagallis-aquatica L.  Water Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

Terrestrial herb of very wet and possibly alkaline places, rhizomed, to 25-35 cm; Stem, rooting at nodes; Herbage, glabrous; Leaves cauline, opposite, 20-35 mm × 12-14 mm wide, length 1.67-2.5 × width, elliptical to obovate, pinnate-veined, few proximally petioled 2 mm to sessile above; Inflorescence, in opposite racemes axillary; Pedicels 5 mm, curved; Calyx sepals 4; Corolla radial, 4-lobed, blue, deciduous in fruit; Stamens 2, staminodes 0; Stigma, entire; Fruit 2.5 mm × 2.5 mm wide, rounded (Colorado specimens notched 0.2 mm.) (Described from Coll. No. 906, 26 Aug 2012, Coll. No. 1005, 22 Jul 2013, and Coll. No 1202, 12 Jul 2015).

- Lippincott Property, Also collected here: Dianthus armeria, Heterotheca villosa, Potentilla recta, and Prunella vulgaris. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2111. 1 Jul 2019. ( Golden OBI ) .

- North Table Mountain Park, Northwest corner of a natural pond, amid grasses and forbs. Top of North Table Mountain, along the now-closed portion of the Mesa Top Trail, 3.39 km. north northeast of the GNIS location of Golden. Tom Schweich 1960.2 21 Jun 2018. ( JCOS s.n. ) .

- Ranson/Edwards Homestead Open Space Park, Coordinates estimated with GoogleEarth. High plains above Rocky Flats, 1.7 mi. west on CO Highway 72, Coal Creek Canyon Road, from CO Highway 93, 0.9 mi. generally north on Plainview Road, then 125 m. generally east along a small ephemeral stream draining to Coal Creek. Tom Schweich 1923. 3 Jun 2018. ( COLO02347474 JCOS s.n. KHD00069222 ) .

- South Table Mountain, In flowing water below seeping drainage from gentle mesatop slope near S. facing mesa rim; locally abundant in mesa gullys with running water. S. Table Mt., a lava capped mesa in the Denver Formation. UTM: 833995 Loraine Yeatts 635. 3 Jul 1983. ( COLO00776716 ) . .

Veronica arvensis L.  Corn Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 6-12 cm., lightly multicellular glandular hairy throughout, sometimes unevenly distributed around stem, growing in standing water; Stem erect, and some branched at base and decumbent to ascending; Leaves, cauline, opposite, ±sessile, 6-10 mm. × 4.5-7.0 mm. wide, ovate; margin serrate, appressed hairy; Inflorescence, elongated terminal raceme; Pedicel, in flower, 0.8 mm., in fruit, 1.0-1.5 mm.; Bracts, 4 mm × 1.3 mm. wide, lanceolate; Flower, appear solitary in upper leaf axils, but this is a bracted inflorescence, limb 3.0-4.5 mm.; Petals, 2 mm. × 1.5 mm. wide, color blue; Style, in flower, 0.6 mm., in fruit, 0.5 mm., < notch; Fruit, 2.0-3.5 mm. × 2.5-3.2 mm., notched 0.4-0.7 mm., flattened, margin glandular hairy. Differentiated from Veronica persica, V. biloba, and V. polita by: short pedicels, short styles, and reduced depth of the notch in the capsule. Differentiated from V. peregrina var. xalapensis (which has also been collected on top of North Table Mountain) by the relatively short inflorescence(?), blue color of the flowers, and broadness of the leaves (Described from Coll. No, 1344, 12 May 2016 and Coll. No. 1602.1, 8 May 2017)

- Lippincott Property, Margin of a small meadow in saddle between hogback and flatiron. Very wet. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2063. 6 Jun 2019. ( Golden OBI ) .

- North Table Mountain Park, Small wet area at base of rocks. Southeast edge of North Table Mountain where a small stream cuts through the uppermost basalt rim, beside North Table Loop, 1.85 km. north northeast of the GNIS location of Golden. Tom Schweich 1344. 13 May 2016. ( CS JCOS s.n. KHD00063805 ) See also my collection 1344, 13 May 2016, at the same location Southern portion of North Table Mountain just above a break in slope above an unnamed canyon draining into Clear Creek, 1.85 km. north northeast of the GNIS location of Golden. Tom Schweich 1602.1 8 May 2017. ( COLO02348282 JCOS s.n. ) . .

Veronica biloba L.  (Syn: Pocilla biloba (L.) W. A. Weber ) Twolobe Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Margin of a small meadow in saddle between hogback and flatiron. Very wet. Collected with V. arvensis. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2063.1 6 Jun 2019. ( Golden ) . .

Veronica catenata Pennell.  Speedwell. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; in water seeping over rocks at head of gentle S facing gully; locally abundant and widespread in mesa gullys with running water. South Table Mountain. 13N 0483900E 4399400N. Loraine Yeatts 701. 16 Jul 1983. ( COLO00776724 KHD21764 ) . [ KHD21764 is determined V. catenata, whereas COLO426177 is determined V. anagallis-aquatica. Treatment of these two taxa by Snow (2009) is inconsistent. ] .

Veronica peregrina L. ssp. xalapensis (Kunth) Pennell.  (Syn: Veronica peregrina L. var. xalapensis (Kunth) H.St.John ) Neckweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual herb to 18 cm., of very wet places, stem, bracts, and sepals lightly stalked glandular; Leaves, cauline, opposite, sessile, 24 mm. × 6 mm. wide, elliptic, margin entire, what appears to be alternate leaves above are really bracts of inflorescence; Inflorescence, an elongated terminal raceme, appears to be flowers borne singly in leaf axils, but “leaves” are actually bracts in a terminal raceme; Bracts, 12 mm. × 1.8 mm., lanceolate, entire, tip rounded; Pedicel, (in fruit) 0.6-1.0 mm.; Sepals, 4, 2.5-5.0 mm. × 0.8 mm. wide, outer pair slightly larger, united at base in pairs, entire, persistent; Corolla, 2.8 mm., white, fused at base, lobes, 4, 2 mm., tips rounded; Ovary, 1 mm. × 0.8 mm. wide, superior; Style, short, ±0.1 mm., persistent; Stigma, entire, ball-shaped; Fruit, 3.0-4.5 mm. × 4-5 mm. wide, obovoid, in 2 parts, notched 0.3 mm.; Ovules, many. Described from Coll. No. 1135, 9 June 2015, and Coll. No. 1172, 25 Jun 2015.

- North Table Mountain Park, Mesa top, southeast portion of North Table Mountain, 3.4 km northeast of the GNIS location of Golden Tom Schweich 1135. 9 Jun 2015. ( JCOS s.n. KHD56842 UCR266079 ) .

- Ranson/Edwards Homestead Open Space Park, Muddy flat with sheet flow water. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 1.0 mile north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. Tom Schweich 1689.5 28 Jun 2017. ( KHD00065585 ) 1.7 mi. west on CO Highway 72 Coal Creek Canyon Roaf from CO Highway 93, 1 mi. generally north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. Tom Schweich 1915. 3 Jun 2018. ( JCOS s.n. OBI124843 ) 1.7 mi. west on CO Highway 72 Coal Creek Canyon Roaf from CO Highway 93, 1 mi. generally north on Plainview Road, then 350 m. east to a terrace overlooking Coal Creek. Tom Schweich 1915.1 3 Jun 2018. .

- South Table Mountain, A lava capped mesa in the Denver Formation; growing along wet area near rock quarry. South Table Mountain. 13N 0483600E 4399700N. Janet L. Wingate, with Esther Witte 2361. 1 Jun 1983. ( COLO00778332 KHD13379 ) A lava capped mesa in the Denver Formation; drying mud on flat-lying mesatop bedrock area with thin soil; no other plants associated in mud; inconspicuous but locally common. South Table Mountain, Front Range. 13N 0484291E 4399632N. Loraine Yeatts 1412. 18 May 1987. ( COLO00778191 KHD25147 ) .

Polemoniaceae

Aliciella pinnatifida (Nutt. ex A.Gray) J.M.Porter.  (Syn: Gilia pinnatifida Nutt. ) Sticky Gilia. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Uncommon on mesa. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau 9261. 16 Jun 1992. ( COLO00828061 ) Volcanic gravel plain, also seen on floor of basalt quarry. Top of North Table Mountain, on volcanic gravel plain near areas of bare basalt, 150 m. northwest of Lichen Peak, 2.6 km. north of the GNIS location of Golden. Tom Schweich 1741. 15 Aug 2017. ( JCOS s.n. KHD00065359 UCR ) Floor of basalt quarry, with Heterotheca villosa, and Paronychia jamesii. Top of North Table Mountain, in the main basalt quarry near the west edge of the mesa, 2.1 km. north of the GNIS location of Golden. Tom Schweich 1926. 8 Jun 2018. ( JCOS s.n. KHD00069163 ) . .

Collomia linearis Nutt.  Tiny Trumpet. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual; Stem simple, unbranched; Leaves linear, 20-25 mm; Calyx membrane 0, lobes growing with capsule, becoming papery with age; Corolla white, 6-9 mm (Described from Coll. No. 713, 19 Nov 2011).

- Lippincott Property, Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest corner near the railroad tracks, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2154.1 13 Jul 2019. ( Discarded ) . .

Ipomopsis aggregata (Pursh) V.E. Grant ssp. candida (Rydb.) V.E. Grant & A.D. Grant.  Scarlet Gilia. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, In a dry meadow. Growing at the SW base of North Table Mountain. Mark Duff 19. 16 Jun 1992. ( COLO00586610 ) Northern part of top of North Table Mountain, just east of the radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1228. 20 Jul 2015. ( JCOS s.n. KHD00062145 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on S facing bare caly slope; common and widespread. South Table Mountain, just W of Quaker Road. 13N 0484200E 4399300N. Loraine Yeatts 578. 16 Jun 1983. ( COLO00587170 KHD21898 ) . [ KHD21898 is determined ssp. candida, whereas COLO418665 is determined ssp. collina ] .

Ipomopsis spicata (Nutt.) V.E. Grant.  Spiked Ipomopsis. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Observed on CoNPS field trip, coordinates approximate. Tom Schweich 6/10/2018. .

- South Table Mountain, A lava capped mesa in the Denver Formation; in flat area at base of S facing slope; 1 plant. South Table Mountain; slope next to Rimrock Road, Golden. 13N 0483000E 4399200N. Loraine Yeatts 890. 28 May 1984. ( KHD21643 ) A lava capped mesa in the Denver Formation. On barren clay depression, possible disturbed site, with Senecio fendleri, Oxytropis lambertii; locally common. S. Table Mt. W. of Quaker Rd., N of Golden Hills Rd., near base of N facing slope of hill 6020. UTM: 841991 Loraine Yeatts 1265. 19 May 1986. ( COLO00588939 ) . .

Microsteris gracilis (Douglas ex Hook.) Greene.  Slender Phlox. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation. Forming ground cover in bare soil areas of mesatop sedge meadow. Inconspicuous but abundant & widespread on N facing exposures. S TABLE MT. 13N 0482187E 4400585N. Loraine Yeatts 1392. 7 May 1987. ( COLO00590539 KHD24505 ) . .

Phlox multiflora A. Nelson.  Mountain Phlox. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, tufted, decumbent to ascending, 7-10 cm.; Internodes, 8-9 mm.; Leaves, cauline, opposite, 23 mm. × 2 mm. wide, ±linear, sharp-pointed; Flowers, solitary at ends of stems, pedicels, 12 mm., hairy, calyx, tube 5 mm. + lobes 6 mm., sparsely hairy, hyaline membranes flat; corolla, tube 14 mm + lobes 11 mm. × 7 mm. wide, color (not recorded), fading blue. Described from Coll. No. 1653, 1 Jun 2011.

- North Table Mountain Park, Determination tentative. Tom Schweich 7/22/2016. Trailing down a break in slope. In retrospect, this also appears to be at the mouth of a small watercourse. North slopes of North Table Mountain, at the base of the steepest slopes, near North Table Loop trail, 4.7 km. north northeast of the GNIS location of Golden. Tom Schweich 1653. 1 Jun 2017. ( CDA CS JCOS s.n. KHD00065489 ) Lower north slopes of North Table Mountain, on a small ridge overlooking the North Table Loop, 4.51 km. north northeast of the GNIS location of Golden Tom Schweich 1814. 10 May 2018. ( JCOS s.n. KHD00069161 UCR ) .

Polygonaceae

Eriogonum alatum Torr.  (Syn: Pterogonum alatum (Torr.) Gross ) Winged Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Common atop mesa. North Table Mountain. TRS: T3S R70W S22. R.J. Rondeau, with C. A. Pague and M. A. Duff 9270. 16 Jun 1992. ( COLO00828095 ) Thin, dry soil, on top of basalt flow capping North Table Mountain. Top of North Table Mountain, about mid-way between the radio tower and the large pond to the east, about 3.25 km. north of the GNIS location of Golden. Tom Schweich 1492. 13 Jul 2016. ( EIU JCOS s.n. KHD00063525 OBI83305 ) .

- Ranson/Edwards Homestead Open Space Park, Tom Schweich 8/28/2015. Tom Schweich 7/29/2015. Same as Coll. No. 1975 Highest plains above Rocky Flats, 1.7 mi. west on CO Highway 72 from CO Highway 93, 1.4 mi. generally north on Plainview Road, then about 150 m. southwest onto a slightly dryer ridge above the road, 15.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1974. 13 Jul 2018. ( JCOS s.n. KHD00068915 OBI ) Same as Coll. No. 1974. Highest plains above Rocky Flats, 1.7 mi. west on CO Highway 72 from CO Highway 93, 1.4 mi. generally north on Plainview Road, then about 150 m. southwest onto a slightly dryer ridge above the road, 15.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1975. 13 Jul 2018. ( KHD ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on S facing slope below mesa edge; abundant and widespread. South Table Mountain, just W of Quaker Road. 13N 0484200E 4399200N. Loraine Yeatts 685. 11 Jul 1983. ( COLO00614560 KHD21708 ) . .

Eriogonum arcuatum Greene.  (Syn: Eriogonum jamesii Benth , Eriogonum jamesii Benth var. flavescens S. Watson ) Baker's Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Growing in thin soils and cracks on top of the uppermost basalt flow. Compare this collection to Coll. No. 1401.2, 1445.1, and 1445.2. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich 1401.1 8 Jun 2016. ( JCOS s.n. KHD00063558 ) Rooted in thin soils and fractures of exposed caprock of mesa. Rocky Mountain Front Range, northwest quadrant of North Table Mountain, a lava-capped mesa of Denver Formation, 210 m. east of radio tower, 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1695. 29 Jun 2017. ( Golden JCOS s.n. KHD00065364 ) Growing in thin soils and cracks on top of the uppermost basalt flow, with E. umbellatum var. umbellatum. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1445.1 22 Jun 2016. ( CAS UCR278007 ) .

- Ranson/Edwards Homestead Open Space Park, Rocky elevated bench. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 915 meters a little north of west into open prairie, nearly to the railroad tracks. Tom Schweich 1720. 28 Jul 2017. ( JCOS s.n. KHD00065331 OBI124851 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on mesa top above S facing slope; low plants forming mats on thin lava soil; not as common as associated species. South Table Mountain, just W of Quaker Road. 13N 0484200E 4399200N. Loraine Yeatts 604. 27 Jun 1983. ( KHD21710 ) . [ Miscellaneous: Original ID: Eriogonum jamesii var. flavescens. 7.5 min Morrison quad. Flowers light yellow fading to orange-brown. Reproductive Status: Flr. , KHD21710 is determined E. arcuatum, wheras COLO418669 is determined E. flavum Nutt. ssp. flavum. Annotations: Eriogonum flavum Nutt. ex Benth. ssp. flavum, Det. Tim Hogan, 1 May 1997. ] .

Eriogonum effusum Nutt.  Spreading Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, woody at base, to 30 cm., Stem, floccose; Leaves, cauline, petiole 5 mm. + blade 20-25 mm. × 2-6 mm. wide, generally tomentose, except less so adaxially, ±flat, margin entire, , withered at flowering; Inflorescence, open cyme; Involucre, 1 per node, 2 mm., tomentose; Perianth, without stipe; Tepals, 1.8 mm., white to pink, described as yellow in Ackerfield (2015) and FNAMN; Achene, unknown. (Described from Coll. No. 1507.1, 22 Jul 2016, Coll. Nos. 1537 & 1541, 18 Aug 2016.)

- North Table Mountain Park, Tom Schweich 1507.1 22 Jul 2016. Many here, very few in bloom. Lower north slopes of North Table Mountain, along the Tablerock Trail, 1.0 km. south of the Mesa Spur trailhead on W. 58th Avenue, 4.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1537. 18 Aug 2016. ( JCOS s.n. KHD00063523 ) Mixed grasses, shrubs, and forbs. Lower north slopes of North Table Mountain, in an area of small knolls that may be the toe of a large lansdlide, 0.74 km. southeast of the Mesa Spur trailhead on W. 58th Avenue, 4.8 km. north northeast of the GNIS location of Golden. Tom Schweich 1541. 18 Aug 2016. ( COLO02348662 CS EIU JCOS s.n. KHD00063579 OBI83345 UC ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; mesatop flat area of thin soil; common. South Table Mountain. 13N 0482300E 4400400N. Loraine Yeatts 805. 20 Aug 1983. ( COLO00599993 KHD21707 ) . .

Eriogonum flavum Nutt. var. flavum.  Alpine Wild Golden Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Rooted in thin soils and fractures of exposed caprock of mesa. Northern portion of North Table Mountain, 210 m east of radio tower, 3.3 km north northeast of the GNIS location of Golden. Tom Schweich 1232. 20 Jul 2015. ( JCOS s.n. KHD00060595 UC UCR267457 ) . .

Eriogonum umbellatum Torr. var. umbellatum.  Sulphur-Flower Buckwheat. CalPhotos. Jepson eFlora. SEINet Taxon.

Type collected “near the Rocky Mountains” by Edwin James, 1820. Described by Torrey in 1827.

- Lippincott Property, Deep forest duff in ponderosa pine woodland, with Sedum lanceolatum, Hypericum perforatum, and Campanula rotundifolia. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, southwest corner near the railroad tracks, 22.3 km. north northwest of the GNIS location of Golden. Tom Schweich 2155. 13 Jul 2019. ( Golden ) .

- North Table Mountain Park, Growing in thin soils and cracks on top of the uppermost basalt flow. Compare this collection to Coll. No. 1401.1, 1445.1, and 1445.2. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich 1401.2 8 Jun 2016. ( JCOS s.n. KHD00063535 ) Growing in thin soils and cracks on top of the uppermost basalt flow, with E. arcuatum. Top of North Table Mountain, southwest edge, within a few meters of the rim of the mesa, 1.7 km. north of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1445.2 22 Jun 2016. ( UCR278006 ) .

- Ranson/Edwards Homestead Open Space Park, Among grasses and ponderosa pines, near top of south-facing slope. 1.6 mi. west on CO Hwy 72 from CO Hwy 93, then 2.4 mi. northerly on Plainview Road, then 40 m. or so south of the road. 16 km. north northwest of the GNIS location of Golden. Tom Schweich 1409. 10 Jun 2016. ( JCOS s.n. KHD00063559 UC UCR277991 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; forming low mats; on gentle slope of lava bedrock; abundant and widespread. South Table Mountain. 13N 0484200E 4399300N. Loraine Yeatts 592. 27 Jun 1983. ( COLO00607176 KHD21709 ) . .

Fallopia convolvulus (L.) A.Löve.  (Syn: Polygonum convolvulus L. ) Black Bindweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Also collected here: Salvia reflexa, Chamaesyce serpyllifolia, and Prunus cf. P. pumila var. besseyi. High plains above Rocky Flats, approximate center of parcel, in a gravel bar on west side of the road, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, 19.9 km. north northwest of the GNIS location of Golden. Tom Schweich, with Cindy Trujillo 2228.3 10 Sep 2019. ( Golden ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; disturbed roadside. South Table Mountain, end of Quaker Street. 13N 0484200E 4399500N. Janet L. Wingate 2726. 30 Aug 1983. ( KHD19031 ) . .

Persicaria lapathifolia (L.) Delarbe.  (Syn: Polygonum l. L. ) CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; W facing slope of quarry in rocky soil; locally common. South Table Mountain. 13N 0484300E 4400000N. Loraine Yeatts 1093. 18 Sep 1985. ( KHD21652 ) . .

Persicaria pensylvanica (L.) M. Gómez.  (Syn: Polygonum pensylvanicum L. ) Pennsylvania smartweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 265 meters northwest to a small ephemeral stream below a reservoir. Tom Schweich 1730. 28 Jul 2017. ( JCOS s.n. KHD00065334 UCR ) . .

Polygonum aviculare L.  CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation, disturbed roadside. South Table Mountain, end of Quaker Street. 13N 0484200E 4399500N. Janet L. Wingate 2725. 30 Aug 1983. ( KHD19030 ) A lava capped mesa in the Denver Formation; plants sprawling on hardpacked clay road; common and weedy. South Table Mountain, road to Castle Rock. 13N 0482800E 4400400N. Loraine Yeatts 806. 20 Aug 1983. ( COLO00611681 KHD21654 ) . .

Polygonum douglasii Greene.  (Syn: Polygonum majus (Meisner) Piper ) Douglas Knotweed. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 35-40 cm., generally glabrous; Leaves, cauline, alternate, some sort of papery tissue at base of leaf that could be an ocrea, 20 mm. × 1 mm. wide, linear to narrowly lanceolate, adaxial sparsely pitted, margins revolute; Inflorescence, flowers borne singly in axils; Flowers, stipe-like base; Perianth, #5 (looked like 3 outer and 3 inner to me) 2.5 mm. × 1 mm. wide, outer, greenish with pink margins, inner, pink with green mid-vein; Stamens, #8 (I was able to count 6), 1.4 mm.; Filaments, winged below; Ovary, superior, 1 mm. × 0.6 mm. wide; Styles, #3, 0.3 mm.; Stigmas, 1 per style; Fruit, 2.5 mm., black. Described from Coll. No. 1718, 28 Jul 2017.

- Ranson/Edwards Homestead Open Space Park, At base of Prunus virginiana with Symphoricarpos and Potentilla recta. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 500 meters west into open prairie. Tom Schweich 1718. 29 Jul 2017. ( KHD00067571 ) In a thicket, primarily of Prunus virginiana, along a break in slope. Also collected in these thickets: Silene latifolia, Cynoglossum officinale, and Arctium minus. High plains above Rocky Flats, west 1.7 mi. on CO Hwy 72 from CO Hwy 93, generally north 1.0 mi. on Plainview Road, then 400 m. east to a small break in slope, 19.6 km. north northeast of the GNIS location of Golden. Tom Schweich 2127.1 6 Jul 2019. ( Golden OBI ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; clay substrate, in loose alluvial gravel in gully bottom along flowing stream; only place seen. South Table Mountain, 1st major N facing gully E of Castle Rock. 13N 0484291E 4399632N. Loraine Yeatts 1477. 24 Jun 1987. ( COLO 00612242 KHD25174 ) . .

Polygonum erectum L.  Erect Knotweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; on hardpacked clay road; common along road. South Table Mountain, road to Castle Rock. 13N 0482800E 4400400N. Loraine Yeatts 808. 20 Aug 1983. ( COLO00613273 KHD21868 ) . .

Polygonum ramosissimum Michx.  Bushy Knotweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; disturbed area by road. South Table Mountain. Janet L. Wingate 2736. 30 Aug 1983. ( KHD19612 ) A lava capped mesa in the Denver Formation; along mesa top road. South Table Mountain, road to Castle Rock. 13N 0483600E 4400000N. Loraine Yeatts 807. 20 Aug 1983. ( COLO00613711 KHD21653 ) . .

Rumex acetosella L.  (Syn: Acetosella vulgaris (K. Koch) Fourr. , R. angiocarpus Murb. ) Sheep Sorrel. CalPhotos. Jepson eFlora. SEINet Taxon.

Coll. No. 1841, 17 May 2018, characters observed: Perennial herb from woody rootstock, to 30 cm., dioecious (all plants in this collection staminate); Leaves, basal and cauline similar, ocrea, 7-10 mm., petiole 20 mm. + blade 12-24 mm. × 6 mm. wide, base hastate, lobes pointing outward, tip acuminate; Pedicels, 1-3 mm.; Flowers, bulbar-like base, described as stipe-like, but does not look stipe-like such as that seen in Eriogonum umbellatum; Pedicels, 1-3 mm.; Tepals, #6, 1.7 mm., reddish (Described from Coll. No. 1841, 17 May 2018).

- Lippincott Property, With mixed grasses and forbs in a gently sloped ponderosa pine woodland. Narrows of the parcel between central and southeast portions, 22 km. north northwest of the GNIS location of Golden. Tom Schweich 2079. 17 Jun 2019. ( Golden OBI ) .

- Ranson/Edwards Homestead Open Space Park, Beside an old ranch road near the eastern boundary fence. 1.7 miles west on CO Highway 72 from CO Highway 93, then 1.4 miles generally north on Plainview Road, then about 800 m. northeast past the old homestead to the northeast corner of the open space; about 16 km. north of the GNIS location of Golden. Tom Schweich 1841. 17 May 2018. ( JCOS s.n. KHD00068917 ) . .

Rumex crispus L.  Curley Dock. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; on damp gentle slope at head of gully; locally abundant. South Table Mountain. 13N 0484000E 4400499N. Loraine Yeatts 943. 4 Jul 1984. ( COLO00615880 KHD21651 ) . .

Rumex triangulivalvis (Danser) Rech. f.  (Syn: R. salicifolius Weinm. var. triangulivalvis (Danser) J. C. Hickman ) Triangular-Valved Dock. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, to 15 cm., growing beside distributary of Mill Creek; Main stem, herbaceous (not clearly woody), decumbent; Leaves, cauline, lance-linear arcuate, 80 mm. × 10 mm. wide, 8 × longer than wide, margins wavy, adaxial surface sparsely short-hairy, esp. mid-rib, abaxial sparsely cobwebby, esp. mid-rib, petiole, 45 mm., not jointed; Inflorescence, monoecious, axillary, dense, interrupted; Flower, inner perianth lobes 3, 3 mm. × 1.8 mm. wide, triangular, notched bear base, tip acute, tubercule (callosity) 1 × 3 inner lobes = 3, ± equal, width 0.3 mm., 1/6 lobe, minute warty, outer perianth lobes mostly deteriorated and easily overlooked; Stamens, 6, yellow; Styles, 3, fringed; Seed, 3-angled, 1.4 mm × 0.7 mm. wide, brown (Described from Coll. No. 1009, 22 July 2013).

- South Table Mountain, A lava capped mesa in the Denver Formation; large patch above seeping cliff at head of S facing gully; common in similar habitats on mesa. South Table Mountain. 13N 0483900E 4399400N. Loraine Yeatts 643. 3 Jul 1983. ( COLO00617001 CS81663 KHD21742 ) . .

Rumex venosus Pursh.  Veiny Dock. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; in gravel; large patch. South Table Mountain; along W side of Quaker Road.13N 0484300E 4399200N. Loraine Yeatts 490. 16 May 1983. ( COLO00617860 KHD24432 ) .

Portulacaceae

Portulaca oleracea L.  Little Hogweed. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; disturbed roadside. South Table Mountain, N end of Quaker Street. 13N 0484200E 4399500N. Janet L. Wingate 2717. 30 Aug 1983. ( COLO 00623082 KHD20740 ) .

Primulaceae

Androsace CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Tom Schweich 7/13/2019. . .

Androsace occidentalis Pursh.  Western Rockjasmine. CalPhotos. Jepson eFlora. SEINet Taxon.

Annual, to 5 cm., inconspicuous, seen only while lying in grass to collect a sedge, non-glandular hairs branched, glands few; Leaves, basal, 8 mm. × 1.8 mm. wide, elliptic, slightly narrowed at base but not clearly petioled; Peduncle (scape?), 40 mm.; Bracts, 3.7 mm., elliptic; Pedicel, 6 mm.; Sepals, 4 mm., prominently 1-veined, but keel not apparent in dry specimen, papery where united (could be described as a calyx with lobes ±= tube); Corolla, <calyx, white. (Described from Coll. No. 1080, 23 April 2015).

- North Table Mountain Park, Lower west-facing slopes of North Table Mountain, off the North Table Loop, 500 m. north of the trailhead off CO Highway 93, 3.5 km. north of the GNIS location of Golden. Tom Schweich 1368. 24 May 2016. ( CS JCOS s.n. KHD00063824 UCR277974 ) Lowest northwest slope of North Table Mountain; small colony in Bromus inermis, Camelina microcarpa, Alyssum simplex, Linaria dalmatica, and Tragopogon dubius; only native here. Accidently discovered when pulling Coll. No. 1876, Camelina microcarpa out of the ground. Smooth brome-infested grasslands on the lower northwest slope of North Table Mountain, just off North Table Loop in the direction of Ramstetter Reservoir, 3.7 km. north of the GNIS location of Golden. Tom Schweich 1877. 24 May 2017. ( JCOS s.n. KHD00069216 ) .

- South Table Mountain, a lava capped mesa in the Denver formation; Meadow W of Quaker road on gentle N slope of hill 6020 below perimeter of Cercocarpus montanus cover; locally abundant. with Draba reptans, Carex pensylvanica ssp. heliophila, Chondrosum gracile, Lomatium orientale, Alyssum minus. Front Range, South Table Mt. 13N 0484091E 4398978N. Loraine Yeatts 4859. 28 Apr 2003. ( COLO00925156 KHD38437 ) .

Ranunculaceae

Anemone patens L.  (Syn: Pulsatilla patens (L.) Mill. ) Eastern Pasqueflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, One or two flowers. Tom Schweich, with Irene Weber 4/24/2019. . .

Anemone patens L. var. multifida Pritzel.  (Syn: Pulsatilla patens (L.) Mill. var. multifida (Pritz.) Zämels ) Eastern Pasqueflower. CalPhotos. Jepson eFlora. SEINet Taxon. var. patens is Eurasian, var. multifida is North American.

- Ranson/Edwards Homestead Open Space Park, Scattered among grassy areas in recently burned Ponderosa pine woodland. Flowers: Coll. No. 1075, 23 Mar 2015; Fruit: Coll. No. 1082, 25 Apr 2015; Leaves: Coll. No. 1125, 28 May 2015. Just north of Plainview Road, 2.1 miles by road north of the intersection of Plainview Road and Colorado State Highway 72, Coal Creek Canyon Road. Tom Schweich 1075. 23 Mar 2015. ( JCOS s.n. KHD56965 UCR266084 ) This collection is only leaves, combined with Coll. Nos. 1075 & 1082. High plains merging into Ponderosa pine woodland, 20 m. west of Plainview Road, 2.2 miles north of CO State Highway 72. Tom Schweich 1125. 28 May 2015. ( See Coll. No. 1075 ) Highest Great Plains at base of the Rocky Mountain Front Range, just above Rocky Flats, 1.7 mi. west on Colorado Highway 73 from Colorado Highway 93, then 2.0 mi. generally north on Plainview Road. Tom Schweich 1793. 26 Apr 2018. ( Golden ) Seed heads, combined with Coll. No. 1075. Grassy open spaces in burned ponderosa pine forest. Tom Schweich, with Matt Schweich 1082. 25 Apr 2015. ( See Coll. No. 1075 ) . .

Clematis hirsutissima Pursh.  (Syn: Coriflora hirsutissima (Pursh) W. A. Weber ) Hairy Clematis, Sugar Bowls. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Six-seven plants in bloom. Tom Schweich, with Irene Weber 4/24/2019. .

- Ranson/Edwards Homestead Open Space Park, USA, Colorado, Jefferson County, Ranson/Edwards Park. N of Rd. 72; E of Plainview. Verbatim Coordinates: T2S R70W S7, 8, 17 & 18. D. Hazlet 10831. 29 May 1999. ( CS79262 ) . .

Clematis ligusticifolia Nutt.  Western White Clematis. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation. Large patch in ditch. S. Table Mt. Ditch along Quaker Rd. UTM: 842991 Loraine Yeatts 219. 4 Aug 1982. ( COLO 00643007 ) A lava capped mesa in the Denver Formation; large area of plants scrambling in ditch; uncommon. South Table Mountain, E side of Quaker Road. 13N 0484200E 4399100N. Loraine Yeatts 800. 20 Aug 1983. ( COLO00642942 KHD21857 ) . .

Clematis orientalis L.  Oriental Virginsbower. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; N facing slope of mesatop quarry; plants scrambling over lava rocks. South Table Mountain. 13N 0484300E 4400000N. Loraine Yeatts 1073. 18 Sep 1984. ( CS80062 KHD20652 ) . .

Delphinium carolinianum Walter ssp. virescens (Nutt.) R.E. Brooks.  (Syn: Delphinium virescens Nutt. ) Carolina Laskspur. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Among short grasses in a small backslope from a promontory on the northwest side of the mesa. Tom Schweich 6/5/2017. Six plants, just off Tilting Mesa Trail Tom Schweich 6/21/2018. Also collected here: Boechera fendleri, Potentilla pensylvanica, Senecio integerrimus, and Viola nuttallii. Inflorescence stunted in one specimen, virus infection (?). Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.26 km. north northeast of the GNIS location of Golden. Tom Schweich 2137. 11 Jul 2019. ( Golden ) . .

Delphinium nuttallianum Pritz.  Twolobe Larkspur. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, In thick soil and forest duff on the exposed east side of a ridge. Jointly owned by City of Boulder OSMP and Jefferson County Open Space, near the northern edge of the property and the Boulder County boundary, east side of ridge, 25.6 km. north northwest of the GNIS location of Golden. Tom Schweich 2030. 26 May 2019. ( Golden ) .

- North Table Mountain Park, One blue, one lavender, in a thicket of Prunus virginiana on a game trail. East side of North Table Mountain, near the Easley Road trailhead, on an old abandoned road above North Table Loop, 3.8 km. northeast of the GNIS location of Golden. Tom Schweich 1628. 22 May 2017. ( JCOS s.n. KHD00065341 ) Moist friable soil. Lower north slopes of North Table Mountain, in a swale beside the North Table Loop, 4.56 km. north northeast of the GNIS location of Golden. Tom Schweich 1813. 10 May 2018. ( Golden OBI124866 ) .

- Ranson/Edwards Homestead Open Space Park, Upper northwest-facing slope above reservoir. High plains above Rocky Flats, 15.8 km. north northwest of the GNIS location of Golden, 1.7 mi. west on CO Hwy 72 from CO Hwy 93, 1.4 mi. north on Plainview Road, then 620 m. north of Plainview Road. Tom Schweich 1381. 29 May 2016. ( CAS JCOS s.n. KHD00064101 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; N facing mesa rim; under and among dense shrub cover. Occasional in local area but not found on S facing mesa. South Table Mountain. 13N 0483900E 4400800N. Loraine Yeatts 1198. 19 May 1985. ( COLO00400176 KHD24475 ) .

- Windy Saddle Park, Tom Schweich 5/4/2020. . .

Delphinium virescens Nutt.  (=Delphinium carolinianum Walter ssp. virescens (Nutt.) R.E. Brooks) Carolina Larkspur. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; on S. facing slope near summit of of mesa highpoint; locally common but only area seen on mesa. South Table Mountain. 13N 0483900E 4399700N. Loraine Yeatts 632. 3 Jul 1983. ( COLO00399220 KHD21704 ) . .

Myosurus minimus L.  (Syn: Myosurus minimus L. ssp. minimus ) Tiny Mousetail. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Drying pond margin. North Table Mt., ca. 1.5 mi NE of Golden. TRS: T3S R70W SEC22. Rick Brune 24 May 1992. Occasional on thin layers of drying mud which covers flat-lying outcrops of latite basalt. Located on top of North Table mountain just W of the Lichen Lakes in the southwestern part of the mesa top. 13N 0482902E 4404403N. Stanley Smookler 154. 24 May 1998. ( KHD32261 ) Well past flowering, in bed of former reservoir. Tom Schweich 6/21/2018. In a small drying pond Tom Schweich 6/21/2018. Ephemeral pond indicated on Golden 7.5' quadrangle may have been natural, but has also been enhanced with a low dam on the southwest side. Top of North Table Mountain, at the northeast edge of a small ephemeral pond, 2.4 km. north northeast of the GNIS location of Golden. Tom Schweich, with Greg McKittrick 1452.1 22 Jun 2016. ( JCOS s.n. ) . .

Pulsatilla patens (L.) Mill.  (=Anemone patens L.) Eastern Pasqueflower. CalPhotos. Jepson eFlora. SEINet Taxon.

- Mount Falcon Park, Martin Marietta Wildflower Project USA, Colorado, Jefferson County, Mount Falcon, foothills of the Front Range, W of Denver. Carol Dawson 11 May 1989. ( KHD27935 ) . .

Ranunculus aquatilis L. var. diffusus With.  (Syn: Ranunculus aquatilis L. var. capillaceus (Thuill.) DC. ) Threadleaf Crowfoot. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, Top of North Table Mountain, south edge of pond at base of north-facing rocky slope (fault scarp?), 3.3 km. north northeast of the GNIS location of Golden. Tom Schweich 1497. 13 Jul 2016. ( JCOS s.n. KHD00063526 ) . .

Ranunculus cymbalaria Pursh.  (Syn: Halerpestes cymbalaria (Pursh) Greene , R. cymbalaria Pursh var. saximontanus Fernald ) Alkali Buttercup. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb; Leaves basal, simple (i.e., not compound); Sepal spurs absent; Flower radial; Perianth in 2 whorls; Petals 4+; Anthers yellow; Pistils many; Ovules 1 per ovary; Fruit body 7-9 mm (Described from Coll. No. 409, 25 May 2004).

- North Table Mountain Park, In very wet soil at the edge of the pond. Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, near the radio tower, 3.4 km. north of the GNIS location of Golden. Tom Schweich 1498. 13 Jul 2016. ( JCOS s.n. KHD00063527 ) . .

Ranunculus pensylvanicus L. f.  Pennsylvania Buttercup. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm.; Leaves, cauline, opposite, petiole, 12 mm., sparsely long ciliate, blade, 72 mm. × 26 mm. wide, lanceolate, glabrous, margin minutely ciliate; Inflorescence, axillary, flowers borne singly on long pedicels; Pedicel, 30 mm.; Sepals, #5, 4 mm.; Petals, #5, 7 mm. × 6 mm. wide, free ≥½length, yellow; Stamens, #5, alternate; Filaments, 2 mm., attached near base; Anthers, 2 mm.; Ovary, superior; Style, #1, 3 mm., lengthening to 4 mm. at maturity; Fruit, 3 mm. × 3 mm. dia., globose, bluish. Described from Coll. No. 1723, 28 Jul 2018.

- Ranson/Edwards Homestead Open Space Park, In the bottom on an ephemeral stream. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 0.8 miles north on Plainview Road, then 555 meters a little north of west along a small ephemeral stream. Tom Schweich 1724. 28 Jul 2017. ( JCOS s.n. KHD00065328 ) . .

Ranunculus sceleratus L.  (Syn: Hecatonia scelerata (L.) Fourr. ) Cursed Buttercup. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, terrestrial herb of wet places, to 20 mm.; Leaves, basal, petiole 45 mm. + blade 20 mm. × 32 mm. wide, deeply lobed into 3 segments, lobes rounded, mostly withered, cauline, alternate, petiole 20 mm. + blade 20 mm. × 24 mm. wide, twice ternately lobed, lobes rounded, few long thin hairs; Flowers, actinomorphic; Sepals, 2.2 mm. × 1.2 mm. wide, thin, ovate, thin white hairs; Petals, 2 mm. × 1.3 mm. wide, yellow, elliptic, not spurred; Achenes, 1.3 mm. × 1.0 mm. wide, green-tan, subglobose, small beak, glabrous. (Described from Coll. No. 1960, 21 June 2018.)

- North Table Mountain Park, Northwest corner of a natural pond, amid grasses and forbs. Top of North Table Mountain, along the now-closed portion of the Mesa Top Trail, 3.39 km. north northeast of the GNIS location of Golden. Tom Schweich 1960. 21 Jun 2018. ( JCOS s.n. KHD00068924 OBI170765 ) .

- South Table Mountain, In damp soil of gully bottom below 3 cottonwood trees; Tertiary-Cretaceous swelling clay of Denver Formation; only a few plants locally. Front Range, South table Mountain, NREL property on S. side of mesa below rim. 13N 0485327E 4399272N. Loraine Yeatts, with Maureen O'Shea-Stone 4618. 28 Jun 2001. ( COLO00644955 KHD37058 ) [ Habitat: In damp soil of gully bottom below 3 cottonwood trees with dense thicket of Celtis reticulata, Symphoricarpos occidentalis, Galium spurium, Asparagus officinale, Onosmodium molle on bordering streambanks; drainage bottom dominated by Carex praegracilis, Juncus arcticus, Monarda fistulosa and also with Cirsium arvense, Eleocharis palustris, Mentha arvense, Apocynum cannabinum; stems erect to sprawling; flowers bright yellow; only a few plants locally. Original ID: Hecatonia scelerata. ] .

Rhamnaceae

Ceanothus fendleri A. Gray.  Fendler's Ceanothus. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Openings in ponderosa pine woodland. Also collected nearby: Monarda fistulosa, Plantago lanceolata, Nassella viridula, and Crataegus succulenta. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, a little southwest of the clay pit and adit, 22.1 km. north northwest of the GNIS location of Golden. Tom Schweich 2146. 13 Jul 2019. ( Golden OBI ) .

- Mount Falcon Park, USA, Colorado, Jefferson County, Morrison, along the trail at Mount Falcon Park. Verbatim Coordinates: T5S R70W. J. Reseigh 23. 2 Jun 2000. ( CS80210 ) .

- Ranson/Edwards Homestead Open Space Park, Somewhat sheltered little draw near base of a hogback. High plains above Rocky Flats, 1.7 miles west on Colorado Highway 72 from Colorado Highway 93, 2.2 miles north on Plainview Road, then 250 m. west northwest into the northwest corner of Ranson/Edwards Homestead OS. Tom Schweich 1700. 7 Jul 2017. ( JCOS s.n. KHD00065459 UCR ) . .

Ceanothus herbaceus Raf.  Jersey Tea. CalPhotos. Jepson eFlora. SEINet Taxon.

- South Table Mountain, A lava capped mesa in the Denver Formation; recent burn site on S facing slope below mesa; in lava boulders. South Table Mountain. 13N 0484200E 4399200N. Loraine Yeatts 597. 27 Jun 1983. ( KHD21733 ) a lava capped Mesa in the Denver Formation. On S facing slope below mesa rim. S Table Mt. UTM: 842992 Loraine Yeatts 809. 26 Aug 1983. ( COLO00658013 ) .

Rosaceae

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem.  Saskatoon Serviceberry. CalPhotos. Jepson eFlora. SEINet Taxon.

Shrub, to 1 m.; Stems, branches unarmed; Leaves, simple, petiole, 8 mm., blade, 22-32 mm. × 19-32 mm. wide, veins, pinnate, surface, sparsely hairy above, sparsely to moderately hairy below, margin, serrate; Flowers, borne singly, pedicels, 10 mm., petals 9 mm. × 4.5 mm. wide, color cream; Ovary, inferior, tip hairy; Styles, #(4)5 (Described from Coll. No. 1800-1801, 7 May 2018)

- North Table Mountain Park, A few small shrubs on slopes of northeast aspect, lower east slopes of North Table Mountain, 3.83 km. northeast of the GNIS location of Golden. Tom Schweich 1800. 8 May 2018. ( UCR ) Beside North Table Loop, numerous small shrubs. Slopes of northeast aspect, lower east slopes of North Table Mountain, 4.00 km. northeast of the GNIS location of Golden. Tom Schweich 1801. 7 May 2018. ( JCOS s.n. KHD00069204 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on W facing slope above S facing gully in open shrub vegetation; locally common. South Table Mountain. 13N 0483300E 4399500N. Loraine Yeatts 484. 16 May 1983. ( KHD21735 ) On mesa at head of S. facing gully, only plant in local area. A lava capped mesa in the Denver Formation. S. Table Mt. UTM: 840995 Loraine Yeatts 499. 24 May 1983. ( COLO00661488 ) On mesa at head of S. facing gully, only plant in local area. A lava capped mesa in the Denver Formation. S. Table Mt. UTM: 842993 Loraine Yeatts 693. 11 Jul 1983. ( COLO 00661470 ) A lava capped mesa in the Denver Formation; E fork of double gully on S side mesa; relatively common. South Table Mountain. 13N 0483300E 4399600N. Loraine Yeatts 751. 27 Jul 1983. ( KHD21734 ) . .

Cercocarpus montanus Raf.  Alder-Leaf Mountain Mahogany. CalPhotos. Jepson eFlora. SEINet Taxon.

Described by Rafinesque from a specimen collected by Edwin James of the Long Expedition, 1820, probably in present Jefferson County, Colorado. Rafinesque was somewhat frustrated by Torrey's reluctance publish a new species name in assigning James' collection to C. fothergillides Humb. Bonpl. And Kunth.

- North Table Mountain Park, Lower Cottonwood Canyon on southeast side of North Table Mountain, about 295 m. northwest of the Neighborhood Access trailhead at the corner of Ridge Road and Ulysses Way, 2.9 km. northeast of the GNIS location of Golden. Tom Schweich 1349. 20 May 2016. ( JCOS s.n. KHD00063923 UC UCR278792 ) .

- Ranson/Edwards Homestead Open Space Park, Observed on CoNPS field trip, coordinates approximate. Tom Schweich 6/10/2018. .

- South Table Mountain, Foothills with CHY, RIB and Rhus trilobata. South Table Mountain near Golden, CO. Harley A. Orahood 24 Jun 1961. ( RM466341 ) A lava capped mesa in the Denver Formation; on mesa rim above S facing slope; abundant and widespread on S and W facing upper mesa slopes and well drained bedrock locations. South Table Mountain, just W of Quaker Road. 13N 0484200E 4399300N. Loraine Yeatts 582. 16 Jun 1983. ( KHD21738 ) Many shrubs forming ground cover, abundant & widespread on S. & W. facing upper mesa slopes & well drained bedrock mesatop locations. A lava capped mesa in the Denver Formation. S Table Mt., flat area S of Castle Rock. UTM: 823004 Loraine Yeatts 845. 13 Sep 1983. ( COLO00664631 ) Forming thicket on bedrock, abundant and widespread on mesatop & upper slopes. A lava capped mesa in the Denver Formation. S Table Mt., local mesatop high NW of Quaker Rd gate. UTM: 840997 Mary E. Edwards 432. 6 Jun 1983. ( COLO 00664300 ) . .

Crataegus succulenta Schrad. ex Link.  (Syn: Crataegus chrysocarpa Ashe , Crataegus erythropoda Ashe , Crataegus macrantha Britton var. occidentalis (Britton) Eggl. ) Fleshy Hawthorn. CalPhotos. Jepson eFlora. SEINet Taxon.

- Lippincott Property, Highest Great Plains meets the Rocky Mountain Front Range, bottomland between two hogbacks, parcel disturbed by cattle grazing and clay mining. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.2 km. north northwest of the GNIS location of Golden. Tom Schweich 2061. 6 Jun 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Woody shrub to 1 m., thornless, alternate leaves, creeksize. Tom Schweich 8/20/2015. Discarded, sterile. See Coll. No. 1462 for material with fruit. High plains above Rocky Flats, 1.6 mi. west on CO Hwy 72 from CO Hwy 93, 1.2 mi. north on Plainview Road, then 200 m. east along the south side of an ephemeral stream; 15.2 km. north northwest of the GNIS location of Golden. Tom Schweich 1455. 27 Jun 2016. Scattered along ephemeral steam. Tom Schweich 1462. 27 Jun 2016. ( JCOS s.n. KHD00063625 ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; forms thickets. South Table Mountain; in first S facing gully E of powerline. 13N 0483000E 4399400N. Loraine Yeatts 892. 28 May 1984. ( COLO00665950 KHD21736 ) . .

Geum macrophyllum Willd.  Large-leaf Avens. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm., plant drying green; Leaves, upper stem leaves divided near to base; Sepals 5; Hypanthium bractlets (not visible); Petals 5 (not visible); Style continuous to fruit, 3 mm., hooked, not plumose, without bristles, non-glandular; Fruit, many per flower, 2.5 mm (Described from Coll. No. 438.1, 12 Nov 2012, var. perincisum considered indistinct).

- Ranson/Edwards Homestead Open Space Park, Determination tentative. Tom Schweich 7/16/2019. . .

Holodiscus dumosus (Nutt. ex Torr. & A.Gray) A.Heller.  Rock Spirea. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, On west-facing slope. Rare. North Table Mountain. On west-facing slope. TRS: T3S R70W S21. R. J. Rondeau, with C.A. Pague, M.A. Duff 9256. 16 Jun 1992. ( COLO00828186 ) . .

Physocarpus monogynus (Torr.) J.M. Coult.  (Syn: Spiraea monogyna Torr. ) Mountain Ninebark. CalPhotos. Jepson eFlora. SEINet Taxon.

Shrub, height unknown (growing in ravine); Leaves, alternate, simple, hairs stellate, petiole, 10 mm., blade, 30 mm. × 33 mm. wide, ovate, palmate-veined, doubly crenate; Inflorescence, umbellate corymb, ±20-flowered; Pedicels, 8-12 mm.; Flowers, limb, 12 mm., petals, 4.5 mm., color cream; Styles, 2 (Described from Coll. No. 1397, 8 June 2016).

- North Table Mountain Park, Steep north slope, northwest section of North Table Mountain, just below a lobe of the mountain that is formed by the lowest lava flow embedded within the Denver Formation, 3.32 km. north of the GNIS location of Golden. Tom Schweich 1658. 5 Jun 2017. ( CDA JCOS s.n. KHD00065398 UCR ) One of several quintessential Jefferson County taxa, as the type was collected in Platte Canyon by Dr. Edwin James of the Major Stephen H. Long expedition of 1820. Northwest side of North Table Mountain, in a small gulch just below the rim of the mesa formed by the highest lava flow in the Denver Formation. Tom Schweich 1739. 15 Aug 2017. ( JCOS s.n. KHD00065320 UCR ) In a small wedge of Jefferson County Open Space lands between two City of Golden parcels. Small grassy areas on the upper southwest slope of North Table Mountain, hummocky terrain, probably in the head of one or more landslides, 1.94 km. north of the GNIS location of Golden. Tom Schweich 2058. 4 Jun 2019. ( Golden ) .

- South Table Mountain, Gentle N. facing slope. S Table Mt. In gully which drains E. toward Quaker Rd. Loraine Yeatts 2002. 30 May 1985. ( COLO00696856 CS79413 CS81482 KHD00050613 ) . .

Potentilla L.  Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

- North Table Mountain Park, The mystery plant. Possibly a Potentilla. Seen here and on the flat to the northeast near the power line. Tom Schweich 5/10/2018. .

- Ranson/Edwards Homestead Open Space Park, Very wet, water from an open running well. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. Tom Schweich 1682. 28 Jun 2017. ( Golden ) . .

Potentilla effusa Douglas ex Lehm.  Wooly Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

- Ranson/Edwards Homestead Open Space Park, Same as Coll. No. 1261, which was made 29 Jul 2015. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 85 m. east of Plainview Road. Tom Schweich 1218. 16 Jul 2015. ( JCOS s.n. KHD00061531 ) . .

Potentilla fissa Nutt. ex Torr. & A.Gray.  (Syn: Drymocallis fissa (Nutt.) Rydb. ) Bigflower Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial, herb, caespitose, to 20 cm., terrestrial, not stoloniferous, rhizomatous, glandular-hairy throughout; Stem, erect, green, multicellular viscid hairs; Leaves, basal, 58-125 mm. × 16-26 cm. wide, pinnately compound, leaflets, #11; cauline, #3-4 per stem, alternate, stipules, 5 mm. × 2 mm. wide, lanceolate, entire to once shallowly toothed; petiole, 18 mm., prior years remaining on plant (as sometimes described for P. rupincola), multicellular viscid hairs, leaflets, #7-13, 40-51 mm. × 20-22 mm. wide, petiolulate (not decurrent), 12 mm. × 9 mm. wide, viscid hairy, terminal leaflet (8)10 mm. side, margin, flat, serrate, teeth, 4-6 per side, on distal ¾, tip dark reddish; Inflorescence, congested cyme, with 5-7 flowers; Flowers, limb, 15 mm.; Calyx, lobes, #5, 7-11 mm. × 2.7-4.5 mm. wide, fused ±½, viscid hairy, epicalyx bractlets, 3-5 mm. × 0.8-1.3 mm. wide, ±½ sepals; Receptacle, hairy, <1 mm., Petals, 7-9 mm. × 5-9 mm. wide, obovate, color yellow; Stamens, >25; Anthers, 1.4 mm. × 1 mm. wide; Ovaries, many, superior, glabrous; Styles, widest at middle, or thickest at base, tapered from middle, attached laterally below top of ovary; Stigma, #1; Achenes, glabrous. (Described from Coll. No. 1364, 21 May 2016, and Coll. No. 1911, 31 May 2018).

- Lippincott Property, Growing with Potentilla recta which was not yet in bloom. GPS coordinates were doubtful and revised using GoogleEarth. Northernmost Jefferson County, parcel jointly owned by City of Boulder and Jefferson County Open Space, approximate centroid of parcel, 22.2 km. north northwest of the GNIS location of Golden. Tom Schweich, with Anthony Massaro and Tanner Marshall 2060. 6 Jun 2019. ( Golden ) .

- Mount Galbraith Park, South-facing, steep, rocky slopes above the Nightbird Gulch trail. Tom Schweich 1099. 3 May 2015. ( JCOS s.n. KHD56901 ) .

- North Table Mountain Park, Lower northeast slopes of North Table Mountain, near North Table Loop and the Neighborhood Access Trail off West 53rd Drive, among rocks in a minor gulley. Tom Schweich 1650. 1 Jun 2017. ( CDA JCOS s.n. KHD00065396 UCR ) .

- South Table Mountain, A lava capped mesa in the Denver Formation; on mesatop bedrock; locally common in rocky areas. South Table Mountain. 13N 0484000E 4399700N. Loraine Yeatts 683. 11 Jul 1983. ( KHD21740 ) A lava capped mesa in the Denver Formation; on SW facing side of mesa rimrock at head of gully; common and widespread on mesa rocks. South Table Mountain; just W of powerline. 13N 0482600E 4400300N. Mary E. Edwards 419. 1 Jun 1983. ( COLO00687020 KHD38729 ) . .

Potentilla hippiana Lehm. var. effusa (Douglas ex Lehm.) Dorn.  Wooly Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., long straight hairy to wooly throughout, eglandular; Leaves, basal and cauline, basal, compound, stipules, 18 mm., entire, petiole, 50 mm., blade, 50 mm. × 33 mm. wide, obovate, leaflets, #9, 23 mm. × 9 mm. wide, bases decurrent, margin, flat, toothed most of length; Inflorescence, cymose; Bractlets, 3 mm., slightly darker than calyx lobes; Calyx, lobes #5, 5 mm.; Petals, #5, 5 mm. × 4 mm. wide, yellow; Ovary, glabrous; Style, 2 mm., widest at base; Fruit, achene, #10, 1.5 mm. × 1 mm. wide, brown, smooth, glabrous. Described from Coll. No. 1261, 29 Jul 2015.

- Ranson/Edwards Homestead Open Space Park, Same as Coll. No. 1218, which was made 16 Jul 2015. High plains above Rocky Flats, 15.2 km north northeast of Golden, 1.3 miles north of CO State Highway 72 on Plainview Road, 85 m. east of Plainview Road. Tom Schweich 1261. 29 Jul 2015. ( CAS OBI83211 UC UCR267472 ) . .

Potentilla norvegica L.  Norwegian Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 25 cm., erect, ±spreading stiff hairy throughout, 1.5 mm., glands, sparse, obscure; Leaves, cauline, stipules, large, 8 mm. × 4 mm. wide, lanceolate, petiole 19 mm. + blade 22 mm. × 24 mm. wide, ternately compound, leaflets, 3(4); Calyx, sepals, 3.5-4.0 mm. × 2 mm. wide, fused >½; Corolla, petals, free, yellow; 1.5 mm. × 1 mm. wide; Stamens, most seen, #8; Style, 0.7 mm., thickest at base; Achenes, 0.6 mm., tan, minutely papillate. (Described from Coll. No. 1500, 13 July 2016).

- North Table Mountain Park, Top of North Table Mountain, on the west side of an ephemeral pond in the northern part of the mesa, beside Mesa Top Trail, near the radio tower, 3.4 km. north of the GNIS location of Golden. Tom Schweich 1500. 13 Jul 2016. ( EIU JCOS s.n. KHD00063629 UC ) . .

Potentilla pensylvanica L.  Prairie Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 40 cm., erect; Leaves, basal and cauline, basal, 130 mm. × 25 mm. wide, compound, pinnate, leaflets, #11, margins, revolute; cauline, #7-10 per stem, alternate, reduced in size, compound, pinnately-lobed, stipules, large, to 25 mm., deeply cleft, petiole, 25 mm., blade, 70 mm. × 32 mm. wide, leaflets, #10, 30 mm. × 11 mm. wide, lobed ≥½, margin, revolute; Inflorescence, clusters of #5-7 flowers; Pedicels, 2-10 mm.; Sepals, #5, 5 mm., green, hairy, glands, abundant, epicalyx bractlets, 4.5 mm. × 1.8 mm. wide; Petals, #5, 5.3 mm. × 4.5 mm. wide, yellow; Receptacle, hairy, 3 mm.; Stamens, ±16; Anthers, 0.7 mm. × 0.6 mm. wide; Ovary, many; Styles, 1 per ovary, thickest near base, tapered throughout; Achenes, 1.3 mm. × 0.8 mm. wide, attachment, lateral, rugose. Described from Coll. No. 2136, 11 July 2019.

- North Table Mountain Park, Also collected here: Boechera fendleri, Delphinium carolinianum ssp. virescens, Senecio integerrimus, and Viola nuttallii. Near the north boundary of the park, lower north slopes of North Table Mountain, in what appears to be the hummocky terrain of an ancient landslide, 6.26 km. north northeast of the GNIS location of Golden. Tom Schweich 2136. 11 Jul 2019. ( Golden OBI ) . .

Potentilla recta L.  Sulphur Cinquefoil. Weed: CO DofA, List: B. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 50 cm., hairy throughout, short (0.3 mm.) hairs glandular, long (4 mm.) hairs straight spreading eglandular; Leaves, stem, 7-8 per stem, alternate, stipules, to 20 mm., lobed, petioles, to 80 mm., blade, palmately compound, leaflets, #5, 45 mm. × 14 mm. wide, lobed ½ to mid-rib, progressively reduced above; Calyx, 9 mm. × 9 mm. wide, flattened at base; Petals, 8 mm., yellow; Style, 1.3 mm., tapered throughout, not appearing warty; Achene, 1 mm., attached laterally, reticulate in color, but not texture. Described from Coll. No. 1680, 28 June 2017. “The long, stiff, spreading, tubercle-based hairs on stems and petioles of P. recta, overtopping a layer of short hairs and glands, also serve to distinguish this aggressive species from native P. gracilis at any stage of the life cycle (FNANM).”

- Lippincott Property, At edge of small creek; also collected here: Dianthus armeria, Heterotheca villosa, Prunella vulgaris, and Veronica anagallis-aquatica. Colorado Noxious Weed List B. Northernmost Jefferson County, parcel jointly owned by Jefferson County Open Space and City of Boulder OSMP, open wet prairie in southeast portion, 21.7 km. north northwest of the GNIS location of Golden. Tom Schweich 2114. 1 Jul 2019. ( Golden ) .

- Ranson/Edwards Homestead Open Space Park, Along a faint old ranch road that goes in the general direction of the original homestead. Colorado Noxious Weed List B. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 210 meters east northeast into open prairie. Tom Schweich 1680. 28 Jun 2017. ( CDA JCOS s.n. KHD00065404 ) Bottom of a watercourse with tall willows; frequently occupied by resting elk. Colorado Noxious Weed List B. Highest plains above Rocky Flats, 1.7 mi. west on CO Highway 72 from CO Highway 93, 1.5 mi. generally north on Plainview Road, then about 260 m. north, 15.5 km. north northeast of the GNIS location of Golden. Tom Schweich 1977.1 13 Jul 2018. ( COLO02347524 Golden OBI ) .

- South Table Mountain, A lava capped mesa in the Denver formation. In damp soil of drying seep with Mimulus floribunda, Cynoglossum officinale, Juncus sp.; relatively common locally but rare elsewhere. South Table Mt. Just below head of only major gully on N. facing side on Table Mt. UTM: 83170E 00900N Loraine Yeatts 3306. 9 Jul 1992. ( COLO00705707 ) . [ Original ID: Geum aleppicum Jacquin ssp. strictum (Aiton) Clausen. Annotations: Potentilla recta L. Det. W. A. Weber, no date. ] .

Potentilla rivalis Nutt.  Brook Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herb, to 60 cm., in very wet places; Stem, erect and branched at base decumbent to ascending, proximal hairs weak, 1 mm., eglandular; Leaves, compound, palmate and ternate, petiole 0-62 mm. + blade 37 mm. × 40 mm. wide, leaflets, 3-5, both sides, green, sericeous, hairs weak; Sepals, 3 mm., green; Petals, 4 mm. × 2.5 mm. wide, yellow; Style, 0.7 mm.; Achene, 0.9 mm., light greenish-brown, smooth, maybe very minutely pappilate. Described from Coll. No. 1682.1, 28 June 2017.

- North Table Mountain Park, Southeast corner of a natural pond, in an opening between cattails. Top of North Table Mountain, along the Tilting Mesa Trail, 3.36 km. north northeast of the GNIS location of Golden. Tom Schweich 1959.3 21 Jun 2018. ( JCOS s.n. KHD00069207 ) .

- Ranson/Edwards Homestead Open Space Park, Very wet, water from an open running well. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. Tom Schweich 1682.1 28 Jun 2017. ( JCOS s.n. KHD00065405 UCR ) . .

Potentilla supina L. ssp. paradoxa (Nuttall) Sojak.  Bushy Cinquefoil. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial herbs, to 50 cm., in very wet places, not stoloniferous; Leaves, petiole 20 mm. + blade 42 mm. × 23 mm., pinnately compound, leaflets, 9, 15 mm. × 6 mm. wide, margins flat; Sepals, 4 mm., green; Petals, 4 mm. × 2.5 mm. wide, ±=sepals, yellow; Style, 0.6 mm., tapered, Achene, 1 mm., brown, large white protuberance. Described from Coll. No. 1682.2, 28 June 2017.

- Ranson/Edwards Homestead Open Space Park, Very wet, water from an open running well. High plains above Rocky Flats, 1.7 miles west on CO Highway 72 from CO Highway 93, 1.4 miles north on Plainview Road, then 450 meters east northeast to the original homestead location. Tom Schweich 1682.2 28 Jun 2017. ( JCOS s.n. KHD00065406 UCR ) . .

Prunus americana Marshall.  American Plum. CalPhotos. Jepson eFlora. SEINet Taxon.

Perennial woody shrub, spreading, to 2 m., blooming before leafing out; Branches, unarmed, glabrous when young, peeling to brown; Leaves, (immature, at time of flowering), simple, 15-19 mm. × 5.5-8 mm. wide, lanceolate or elliptic-rhomboid, pinnately veined, glabrous, margin toothed, teeth eglandular, base slightly hairy, petiole 3 mm., adaxially hairy; Flowers, in small groups of 2-3; Pedicels, 9-18 mm., glabrous to sparsely hairy; Hypanthium, 2 mm.; Sepals, 2.5-2.8 mm., reflexed, few cobwebby hairs adaxially; Petals, free, white, 5-7 mm. × 2.5-4.5 mm. wide; Stamens, many (30?); Ovary superior; Styles #1, 10 mm.; Fruit unknown (Described from Coll. No. 1093, 30