Detailed Area Plant List for Mojave National Preserve, San Bernardino County, United States.

Edited by Tom Schweich

This list is assembled from personal collections, herbarium vouchers, and published lists.In particular, much of the data is provided by the participants of the Consortium of California Herbaria (http://ucjeps.berkeley.edu/consortium/).

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

For a summary of distribution information, with photographs and online queries, please see: Area List for Mojave National Preserve, San Bernardino County, United States.

For a check list, please see: Check List for Mojave National Preserve, San Bernardino County, United States.

CalPhotos

Pteridaceae

Argyrochosma jonesii (Maxon) Windham.  Jones' false cloak fern.
Gilroy Canyon, Mojave Desert; East Mojave Desert region Providence Mountains: Middle Gilroy Canyon; elev. ca. 4500 feet. R. F. Thorne, B. Priggs, D. Michener, S. Meyer, and W. Wisura 51719. 5/25/1978 ( RSA334716 UC1511343 ) . . CalPhotos

Cupressaceae

Juniperus osteosperma (Torrey) Little.  Utah Juniper.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Clark Mountain, Vasek, F. C., and R. F. Thorne, 1988 . Lobo Point, Lobo Point Camp. Tom Schweich 114. 4/30/1997 ( UC(TAS) Zzyzx ) . . CalPhotos

Ephedraceae

Ephedra .  Joint Fir.
Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Ephedra nevadensis S. Watson.  Nevada Ephedra.
Lobo Point, Common at Lobo Point Tom Schweich 9/26/1999 Near Lobo Point, on rocks, faulted rhyolite, with Euphorbia, Rhus trilobata, Eriogonum fasciculatum, Salvia mohavensis, and Ferocactus cylindraceus. Tom Schweich 88. 4/28/1997 ( Alameda, Ready to Mount ) Collection from both male and female plants, great clouds of pollen are produced by the male plants when tapped. Along the road out of the Lobo Point camp site, between the opal beds and the andesite outcrop. Tom Schweich 226. 4/27/2000 ( UC(TAS) ) . . CalPhotos

Ephedra viridis Cov.  Green Ephedra.
Clark Mountain, Vasek, F. C., and R. F. Thorne, 1988 . Lobo Point, In woodland under Pinus monophylla. Common. Tom Schweich 33. 4/29/1996 ( UC(TAS) Zzyzx ) . . CalPhotos

Pinaceae

Pinus monophylla Torrey & Fremont.  Single Leaf Pinyon Pine.
Lobo Point, Lobo Point Camp. Tom Schweich 113. 4/30/1997 ( UC(TAS) Zzyzx ) . . CalPhotos

Amaranthaceae

Amaranthus .  Pigweed.
Lobo Point, Tom Schweich 141. 10/3/1997 ( UC(TAS) Unmounted ) . . CalPhotos

Amaranthus albus L.  Prostrate Pigweed.
Holliman Well, Historic corral area, locally common. Eastern Mojave Desert Mid Hills; along Black Canyon Rd., just north of Mid Hills Campground turnoff, about 8 miles north of Hole-in-the-wall Campground Jim Andre 6485. 9/25/2005 ( UCR177987 ) . . CalPhotos

Amaranthus blitoides S. Watson.  Mat Amaranth.
Globe Canyon (Upper), with Prunus, Rhus, Yucca, Gutiierrezia, Salvia, Ephedra, Coleogyne, Eriogunum, Pinus monophylla, etc. Occasional annual weed in dump near Globe Mine. in Pinyon woodland, in granite soil. Mid hills; Prunus, Rhus, Yucca, Gutierrezia, Salvia, Ephedra, Coleogyne, Eriogonum, Pinus monophylla, etc. Mojave Desert; East Mojave Desert region 9 1/2 (air) miles ENE of Kelso in upper Globe Canyon, in narrow canyon E of Globe Mine. Mid-Hills. James Henrickson 12764. 9/2/1973 ( RSA270384 ) . . CalPhotos

Amaranthus palmeri S. Watson.  Careless Weed.
Bathtub Spring, slopes and washes, annual occasional on slope Eastern Mojave Desert region Mid Hills/ New York Mountains: in Bathtub Spring area (just W of Pinto Basin, ca. 10 air miles W of junctiion Ivanpah Road/ New York Mountain Road.) [Editorial Comments: 2008, S. D. White #7158 is determined as A. palmeri at RSA, and A. torreyi at UCR. ]) Scott D. White, Bill La Haye 7158. 9/27/1998 ( RSA634142 UCR144138 ) . . CalPhotos

Amaranthus torreyi (A. Gray) Benth.  Torrey's Amaranthus.
Cedar Canyon, uncommon annual Eastern Mojave Desert Cedar Canyon in the Mid Hills area, large wash crossing Cedar Canyon Rd., 0.4 mi. west of Black Canyon Rd. B. Pitzer 4076. 9/26/1999 ( UCR163766 ) . Rock Spring, Growing in Sandy wash above gorge. Broad sandy wash in seasonally moist soils Associates: Mimulus pilosus, Baccharis sergiloides. Eastern Mojave Desert Mid Hills: Rock Springs, about 300 miles south of Rocky House, N end of Woods Mtns, S Pinto Valley Jim Andre 6483. 9/25/2005 ( UCR178400 ) . . CalPhotos

Atriplex canescens (Pursh.) Nutt. ssp. canescens.  Four-wing Saltbush.
Clark Mountain, Vasek, F. C., and R. F. Thorne, 1988 . Lobo Point, . Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Chenopodium .  Goosefoot.
Pinto Mountain, South slope of the mountain. 289 km northeast of Los Angeles, California. Tom Schweich 200. 9/26/1999 . . CalPhotos

Krascheninnikovia lanata (Pursh) A. D. J. Meeuse & Smit.  Winter Fat.
Pinto Mountain, South slope of the mountain. 289 km northeast of Los Angeles, California. Tom Schweich 198. 9/26/1999 ( UC(TAS) Zzyzx ) . . CalPhotos

Tidestromia lanuginosa (Nutt.) Standley.  Wooly Honeysweet.
Granite Mountains, Hickman, James C. (Ed.), 1993 . . CalPhotos

Anacardiaceae

Rhus trilobata Torrey & A. Gray.  Squawbush.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Cedar Canyon, Knute (1991) identifies as var. anisophylla. Knute, Adrienne, 1991 . Lobo Point, In woodland with Pinus monophylla. Common. Tom Schweich 36. 4/29/1996 ( UC(TAS) Zzyzx ) . . CalPhotos

Apiaceae (Umbelliferae)

Cymopterus multinervatus (J. M. Coult. & Rose) Tidestr.  Purple-Nerve Spring-Parsley.
Pinto Mountain, Eastern Mojave Desert Mid Hills, summit of Pinto Mtn. Lynn Johnson 4/27/1976 ( UCR28737 ) . . CalPhotos

Cymopterus purpurascens (A. Gray) M. E. Jones.  Wide-Wing Spring-Parsley.
Mid Hills, Mojave Desert; East Mojave Desert region Mid Hills, Mojave Desert. Alt. 5500 ft. E. C. Jaeger 4/15/1940 ( POM254850 ) . Keystone Canyon, in sandy clay plain in open Joshua TreeWoodland;;with Yucca brevifolia, Y. schidigera, Juniperus, Gutierrezia, Ephedra, Opuntia, Salazaria, Erodium, Descurainia, etc. Frquent perennial, leaves grey-green. Mojave Desert; East Mojave Desert region 13 (air) miles E of Cima, in Mid Keystone Canyon, 6 miles W of Ivanpah Road.Elev. 5100 ft. James Henrickson 9460. 4/29/1973 ( RSA270836 ) . . CalPhotos

Apocynaceae

Apocynum cannabinum L.  Indian Hemp.
Live Oak Spring, Rare, growing from spring, which flows from side of white chalky soils.; Eastern Mojave Desert Mid Hills: Sidehill seep, 1 mi NE of Live Oak Spring Jim Andre 4071. 5/26/2003 ( UCR164203 ) . . CalPhotos

Asclepiadaceae

Asclepias erosa Torrey.  Desert Milkweed.
Wild Horse Canyon, . Kelso, Along Kelso-Cima Road, near Kelso. Tom Schweich 152. 10/3/1997 ( Alameda, Ready to Mount ) . Wild Horse Canyon, In Wild Horse Canyon Wash on the cherry stem road into the Blue Jay Mine, north end of Wild Horse Mesa. 278 km northeast of Los Angeles, California. Tom Schweich 255. 6/5/2000 ( UC(TAS) Zzyzx ) . Lobo Point, Rare, on alluvial soil. Tom Schweich 23. 5/27/1993 ( Zzyzx ) . . CalPhotos

Asteraceae

Acamptopappus sphaerocephalus (Harv. & A. Gray) A. Gray.  Rayless Goldenhead.
Wild Horse Canyon, collected 6.0 mi S, and 4.0 mi W, on road to Wildhorse Canyon Mid Hills Campground and Gold Valley - Mid Hills Campground, Wildhorse Canyon, and Gold Valley Road [Editorial Comments: 2008, Six miles south of Mid Hills Campground would be close to Willow Well. ]) K. Simmons 5/4/1979 ( UCSB32811 ) . . CalPhotos

Ageratina herbacea (A. Gray) R. M. King & H. Rob.  Fragrant Snakeroot.
Bathtub Spring, Slopes and washes near spring and on akj. N-facing slope, growing in wash bottom and on undisturbed upland soils. East Mojave Desert region, Mid Hills, New York Mountains, Bathtub Spring area (just West of Pinto Basin, 10 air miles W of junction Ivanpah Road and New York Mountain Rd.) Scott D. White and Bill LaHaye 7156. 9/27/1998 ( RSA634141 UCR144137 ) Assoc. with Pinus monophylla, Ericameria cuneata, Rhamnus ilicifolia, Robinia neomexicana occasional, flowering Eastern Mojave Desert Mid Hills: Rocky crags just south of Bathtub Spring Jim Andre, Tom Thomas, and T. La Doux 7641. 9/30/2006 ( UCR182911 UCR183434 ) . . CalPhotos

Ambrosia eriocentra (A. Gray) Payne.  Wooly Bur-Sage.
Cedar Canyon, Knute, Adrienne, 1991 Mojave Desert; East Mojave Desert region Eastern Mojave Desert: Cedar Canyon, Black Canyon Road at Cedar Canyon Rd. (Mid Hills 7.5' Q.: 35°11'N, 115°25'W; T13N R15E SE/4 S30). Alt.: 1516m/4972ft. Site AE-70-3. R. D. Goeden, and D. W. Ricker 7/23/1970 ( RSA643275 ) . Lobo Point, In granite sand washes. On valley floor, 2 km WNW of Hole-in-the-Wall. Tom Schweich 178. 5/29/1999 ( UC(TAS) ) In washes with Prunus fasciculata. Common. Tom Schweich 30. 4/29/1996 ( UC(TAS), Not Found Zzyzx ) In granite sand washes. On valley floor, 2 km WNW of Hole-in-the-Wall. Tom Schweich 178. 5/29/1999 ( Zzyzx ) . . CalPhotos

Artemisia ludoviciana Nutt.  Silver Wormwood.
Lobo Point, 3 km west-northwest of Hole-in-the-Wall. Tom Schweich 159. 9/20/1998 ( UC(TAS) Zzyzx ) In woodland with Pinus monophylla and Rhus trilobata. Uncommon. Tom Schweich 31. 4/29/1996 ( Zzyzx ) . . CalPhotos

Artemisia ludoviciana Nutt. var. albula (Woot.) D.D. Keck.  White Sagebrush.
Rock Spring, Associated: Mirabilis bigelovii, Digitaria californica, Prunus fasciculata, Achantherum speciosum, Erioneuron pulchellum, Yucca schidigera. Evidence of recreational fire. Eastern Mojave Desert Mid Hills, near Rock Spring at southern edge of lower Pinto Valley Jim Andre, and G. L. Clifton 6419. 11/16/2005 ( UCR169450 ) . . CalPhotos

Artemisia tridentata Nutt.  Big Sagebrush.
Clark Mountain, Vasek, F. C., and R. F. Thorne, 1988 . Black Canyon, Black Canyon Road, near Holiman Well. Tom Schweich 151. 10/3/1997 ( UC(TAS) Unmounted ) . . CalPhotos

Artemisia tridentata Nutt. ssp. tridentata.  Big Sagebrush.
Round Valley, Juniper-sagebrush scrub Mojave Desert; East Mojave Desert region Mid Hills area (between Providence and New York Mountains). 16.5 miles north of intersection of Essex Road and Black Canyon Road, along Black Canyon Road; 0.4 miles before sign for BLM Mid Hills campground. Sharon Kautto 8449. 5/5/1984 ( RSA651061 RSA658440 ) . Rock Spring, Growing in moist sand in large wash with Chysothamnus nauseosus hololeucus, C. paniculatus, Artemisia tridentata. Eastern Mojave Desert Mid Hills: Just south of Rock House, west of Rock Spring, along Rd to Government Holes, Pinto Valley Jim Andre, Tim Thomas, and T. La Doux 7655. 9/30/2006 ( UCR183269 ) . . CalPhotos

Baccharis sergiloides A. Gray.  Squaw Waterweed.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Lobo Point, In wash near Lobo Point. Uncommon. Tom Schweich 32. 4/29/1996 ( UC(TAS) ) . Wild Horse Mesa, NWHM, at water tank. Tom Schweich 103. 4/29/1997 ( UC(TAS) Zzyzx ) . Lobo Point, In wash near Lobo Point. Uncommon. Tom Schweich 32. 4/29/1996 ( Zzyzx ) . . CalPhotos

Baileya .  Desert Marigold.
Wild Horse Mesa, Tom Schweich 291. 5/26/2001 ( UC(TAS) ) . . CalPhotos

Baileya multiradiata A. Gray var. multiratiata.  Desert Marigold.
Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Brickellia californica (Torrey & A. Gray) A. Gray.  California Brickelbush.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Lobo Point, 3 km west northwest of Hole-in-the-Wall. Tom Schweich 148. 10/3/1997 ( UC(TAS) Zzyzx ) Shaded areas alongside washes. Uncommon in the Lobo Point Camp. Lobo Point Camp. Tom Schweich 121. 4/30/1997 ( Zzyzx ) Alongside washes. 3 km west-northwest of Hole-in-the-Wall. Tom Schweich 161. 9/20/1998 ( Zzyzx ) . . CalPhotos

Chrysothamnus .  Rabbitbrush.
Lobo Point, . Black Canyon, Black Canyon Road Tom Schweich 150. 10/3/1997 ( UC(TAS) Unmounted ) . . CalPhotos

Chrysothamnus depressus Nutt.  Longflower Rabbitbrush.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Pinto Mountain, South slope of the mountain. 289 km northeast of Los Angeles, California. Tom Schweich 472.1 10/15/2005 ( Alameda ) . Wild Horse Mesa, North-facing limestone slopes. See also collection number 221. Tom Schweich 265. 9/1/200 ( Alameda, More Processing ) With Juniperus osteosperma, Pinus monophylla, Coleogyne ramosissima, and Eriogonum fasciculatum. Occasional in experimental plots of Swertia albomarginata, no flowers when collected. See also collection number 265. Tom Schweich 221. 4/27/2000 ( Alameda, Ready to Mount ) . Bathtub Spring, Slopes and washes near spring and adjacent N-facing slope. Eastern Mojave Desert Mid Hills/New York Mountains. Bathtub Spring area, just west of Pinto Basin, 10 air mi west of junction of Ivanpah Road and New York Mountain Road Scott D. White and Bill La Haye 7162. 9/27/1998 ( UCR147006 ) . . CalPhotos

Cirsium neomexicanum A. Gray.  Desert Thistle.
Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Ericameria .  Goldenbush.
Lobo Point, turpentine smell, yellow perennial composite. North slope of Wild Horse Mesa. Tom Schweich 92. 4/29/1997 ( Alameda, More Processing ) Tom Schweich 144. 10/3/1997 ( UC(TAS) Unmounted ) . . CalPhotos

Ericameria cooperi (A. Gray) H. M. Hall.  Cooper's Goldenbush.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Lobo Point, . . CalPhotos

Ericameria cuneata (A. Gray) McClatchie.  Wedgeleaf Goldenbush.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Lobo Point, In rocks. Common. Tom Schweich 40. 4/29/1996 ( UC(TAS) Zzyzx ) . . CalPhotos

Ericameria cuneata (A. Gray) McClatchie var. spathulata (A. Gray) H. M. Hall.  Wedgeleaf Goldenbush.
Keystone Spring, Philip A. Munz 13893. 10/13/1935 ( UC ) . Providence Mountains, T. S. Brandegee 5/26/1902 ( UC ) . Keystone Canyon, Robert F. Thorne, C. W. Tilforth L. DeBuhr, et al. 47956. 10/29/1976 ( UC ) . Bonanza King Canyon, R. F. Thorne, C. W. Tilforth, B. Prigge, et al. 50640. 10/28/1977 ( UC ) . Willow Spring Basin, Upper Willow Springs Basin. J. Douglas Ripley 1886. 5/27/1971 ( UC ) . Snake Spring, in crevice of granitic boulder B. A. Stein 134. 9/26/1978 ( UC ) . Fountain Canyon, On wall of cliff in Fountain Canyon; near Mitchells Caverns Providence Moutains. Willis Linn Jepson 18180. 5/6/1937 ( UC ) . Granite Mountains, Deadman Point J. Ewan 5574. 12/24/1931 ( UC ) . Bonanza King Canyon, rocky granitic slopes Barry A. Prigge, R. F. Thorne, et al. 2319. 10/28/1977 ( UC ) . . CalPhotos

Ericameria laricifolia (A. Gray) Shinn.  Turpentine Bush.
Cottonwood Canyon, granitic slopes Robert F. Thorne, C. W. Tilforth L. DeBuhr, et al. 48610. 10/29/1976 ( UC ) . Coliseum Mine, vicinity, on dry rocky south slopes John C. Roos 4956. 9/1/1950 ( UC ) . Willow Spring, "Willow Sprs. Cyn,; among granitic boulders or on cliffs of rocky granitic bluffs. R. F. Thorne, C. W. Tilforth, B. Prigge, et al. 50674. 10/29/1977 ( UC ) . Pachalka Spring, Dry wash, gravel. large canyon to the northwest, over one divide. Carl B. Wolf 7608. 10/6/1935 ( UC ) . Granite Pass, Granitic outcrops and sandy washes. Granite Pass and east spur of Granite Moutnains; circa 0.5 miles south of relay station. R. F. Thorne, B. Prigge, D. Michener, et al. 53841. 10/19/1979 ( UC ) . Cottonwood Canyon, granitic slopes Robert F. Thorne, C. W. Tilforth L. DeBuhr, et al. 48610. 10/29/1976 ( UC ) . Granite Mountains, Bunny Club, on bajada. G. Dilworth 58. 5/31/1970 ( UC ) . . CalPhotos

Ericameria linearifolia (DC.) Urb. & J. Wussow.  Narrowleaf Goldenbush.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . Cedar Canyon, Knute, Adrienne, 1991 . Lobo Point, . Willow Spring Basin, "Willow Springs Canon Old Dad Mountains" Willis Linn Jepson 20414. 4/29/1941 ( JEPS ) . Cedar Canyon, "Cedar Canyon near; this probably is the canyon which traverses the Mid Hills …" Mary Beal 5/11/1932 ( JEPS ) . Granite Mountains, NE point of the Granite Mountains E. R. Blakely 3226. 4/23/1960 ( JEPS ) . New York Mountains, Willis Linn Jepson 5440. 5/9/1913 ( JEPS ) . Fountain Canyon, Mary Beal 205. 5/4/1937 ( JEPS ) . Willow Spring Basin, "Willow Springs Canon Old Dad Mountains" Willis Linn Jepson 20426. 4/29/1941 ( JEPS ) . Fountain Canyon, Mary Beal 798. 5/2/1940 ( JEPS ) . Caruthers Canyon, (Not 4th of July Canyon) Annie M. Alexander and Louise Kellogg 1321. 5/4/1940 ( UC ) . Keystone Canyon, Keystone Cyn 0.3 mi n from; on rd to Ivanpah, e base of New York Mts. P. C. Everett and E. K. Balls 23166. 5/13/1958 ( UC ) Pinyon-oak woodland, granitic substrate. Barry Prigge 3431. 6/6/1979 ( UC ) . Bonanza King Canyon, Bonanza King Mine; e Mojave Desert, e slope of Providence Mts., dry rocky ls. Slopes in scrub Mojave Desert, Providence Mts. Robert F. Thorne and Jim Henrickson 45348. 5/3/1975 ( UC ) . Barnwell, Katherine Brandegee 5/1/1911 ( UC ) . Bonanza King Canyon, vicinity of P. A. Munz, I. M. Johnston, R. D. Harwood 4055. 5/21/1920 ( UC ) . Providence Mountains, T. S. Brandegee 5/25/1902 ( UC ) . Caruthers Canyon, Pinyon-juniper ed. And oak chaparral, in sandy soil among granitic boulders. Robert F. Thorne, C. W. Tilforth L. DeBuhr, et al. 49293. 5/13/1977 ( UC ) . Lobo Point, In scrub and woodland. Common. Tom Schweich 39. 4/29/1996 ( Zzyzx ) . . CalPhotos

Ericameria nauseosa (Pall.) G. I. Nesom & G. I. Baird.  (Syn: Chrysothamnus nauseosus (Pall.ex Pursh) Britton )
Cedar Canyon, USGS quad: Mid Hills 7.5' Q.; Very common 3.5-5.5 ft. shrubs, mostly at edges of road and of wash; fls. yellow.; Eastern Mojave Desert Cedar Canyon in the Mid Hills area, large wash crossing Cedar Canyon Rd., 0.4 mi. west of Black Canyon Rd. B. Pitzer 4077. 9/26/1999 ( UCR163767 ) . . CalPhotos

Ericameria nauseosa (Pursh) G. L. Nesom & G. I. Baird var. hololeuca (A. Gray) Nesom & Baird.  (Syn: Chrysothamnus nauseosus (Pall.ex Pursh) Britton ssp. hololeucus (A. Gray) H. M. Hall & Clem. ) Rubber Rabbitbush.
Clark Mountain, Philip A. Munz 12911. 9/15/1932 ( UC ) . Coliseum Mine, 1 mile south Carl B. Wolf 10/7/1935 ( UC ) . Bathtub Spring, USGS quad: Mid Hills 7.5' Q.; Shrub, c. 1.2 m tall; fls. yellow; abundant, mostly in washes; Eastern Mojave Desert Mid Hills/New York Mountains. Bathtub Spring area, just west of Pinto Basin, 10 air mi west of junction of Ivanpah Road and New York Mountain Road Scott D. White and Bill La Haye 7130. 9/27/1998 ( UCR147000 ) . Rock Spring, Growing in moist sand in large wash Assoc. with Chysothamnus nauseosus hololeucus, C. paniculatus, Artemisia tridentata. Eastern Mojave Desert Mid Hills: Just south of Rock House, west of Rock Spring, along Rd to Government Holes, Pinto Valley Jim Andre, Tim Thomas, and T. La Doux 7656. 9/30/2006 ( UCR183268 ) . . CalPhotos

Ericameria paniculata (A. Gray) Rydb.  (Syn: Chrysothamnus paniculatus (A. Gray) H. M. Hall ) Mojave Rabbitbrush.
Cedar Canyon, Knute, Adrienne, 1991 . Rock Spring, Growing in moist sand in large wash Assoc. with Chysothamnus nauseosus hololeucus, C. paniculatus, Artemisia tridentata. Eastern Mojave Desert Mid Hills: Just south of Rock House, west of Rock Spring, along Rd to Government Holes, Pinto Valley Jim Andre, Tim Thomas, and T. La Doux 7657. 9/30/2006 ( UCR183267 ) . . CalPhotos

Eriophyllum pringeli A. Gray.  Pringle's Woolly Sunflower.
Wild Horse Canyon, Burned pinyon woodland with Verbena gooddinggii, Layia glandulosa, Lupinus concinnus. Eastern Mojave Desert Mid Hills: along Wildhorse Canyon Rd., c. 1 mi south of Macedonia Rd. exit Jim Andre 7301. 3/27/2006 ( UCR175241 ) . . CalPhotos

Eriophyllum wallacei (A. Gray) A. Gray.  Woolly Wasterbonnets.
Lobo Point, Common in the Lobo Point Camp. Lobo Point Camp. Tom Schweich 118. 4/30/1997 ( Alameda, More Processing ) Tom Schweich 278. 4/24/2001 ( UC(TAS) ) . . CalPhotos

Gutierrezia microcephala (DC.) A. Gray.  Threadleaf Snakeweed.
Cedar Canyon, Knute, Adrienne, 1991 . Lobo Point, Tom Schweich 143. 10/3/1997 ( UC(TAS) ) Tom Schweich 157. 9/20/1998 ( UC(TAS) Unmounted ) . . CalPhotos

Gutierrezia sarothrae (Pursh) Britton & Rusby.  Broom Snakeweed.
Clark Mountain, Vasek, F. C., and R. F. Thorne, 1988 . Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . . CalPhotos

Hymenoclea salsola A. Gray.  Cheese Bush.
Cedar Canyon, Knute, Adrienne, 1991 . Lobo Point, . . CalPhotos

Psilostrophe cooperi (A. Gray) E. Greene.  Cooper's Paper Daisy.
Pinto Mountain, South slope of the mountain. 289 km northeast of Los Angeles, California. Tom Schweich 202. 9/26/1999 ( UC(TAS) Zzyzx ) . . CalPhotos

Sanvitalia abertii A. Gray.  Abert's Sanvitalia.
Pinto Mountain, South slope of the mountain. 289 km northeast of Los Angeles, California. Tom Schweich 201. 9/26/1999 ( ? UC(TAS) Zzyzx ) . . CalPhotos

Senecio L.  Ragwort.
Lobo Point, Valley floor near Lobo Point, 2 km WNW from Hole-in-the-Wall. Tom Schweich 175. 5/29/1999 ( UC(TAS) ) Tom Schweich 145. 10/3/1997 ( UC(TAS) Unmounted ) . . CalPhotos

Senecio multilobatus A. Gray.  Lobeleaf Groundsel.
Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Stylocline .  Nest Straw.
Lobo Point, Experimental plots in Salvia dorrii. Tom Schweich 314. 5/26/2003 ( Alameda ) . . CalPhotos

Stylocline psilocarphoides M. Peck.  Bare-Twig Nest Straw.
Macedonia Canyon, N-facing slope in post-fire pinyon woodland, with Galium parishii, Pinus monophylla, Ribes velutina, Poa bigelovii, Plantago patagonica. Eastern Mojave Desert Mid Hills: Macedonia Canyon, c. 2 mi SW of Columbia Mtn Jim Andre 7794.1 4/28/2006 ( UCR188681 ) . . CalPhotos

Syntrichopappus fremontii A. Gray.  Yellow-Ray Fremont's-Gold.
Keystone Canyon, In sandy clay plain in open Joshua Tree Woodland; with Yucca brevifolia, Y. schidigera, Juniperus, Gutierrezia, Ephedra, Opuntia, Salazaria, Erodium, Descurainia, etc. Common yellow-flowered annual. Ca 13 (air) miles E of Cima, in Mid Keystone Canyon, 6 miles W of Ivanpah Road James Henrickson 9459. 4/29/1973 ( CHSC27003 ) . Macedonia Canyon, Sandy canyon bottom and post-fire pinyon woodland, with Pinus monophylla, Lupinus concinnus, Linanthus aureus aureus, Cryptantha barbigera. Eastern Mojave Desert Mid Hills: upper Macedonia Canyon, c. 0.6 mi west of Wildhorse Canyon Rd. and 1.2 mi ESE of Columbia Mtn Jim Andre 7355. 4/24/2006 ( UCR175189 ) . Wild Horse Mesa, Sandy bench in post-fire Joshua Tree woodland, with Yucca brevifolia, Verbena gooddinggii, Pectocarya platycarpa, Eriophyllum wallacei. Eastern Mojave Desert Mid Hills: just west of Wildhorse Canyon Rd. and c. 3 mi NW of Hole-In-The-Wall Jim Andre and Tasha La Doux 7377. 4/20/2006 ( UCR175264 ) . Round Valley, Sagebrush Scrub Eastern Mojave Desert Mid Hills Area, Round Valley A. C. Sanders 169. 4/30/1976 ( UCR18029 ) . . CalPhotos

Tetradymia argyraea Munz & Roos.  Striped Cottonthorn.
Globe Canyon (Upper), In Pinyon woodland, in granite soil; with Prunus, Rhus, Yucca, Gutierrezia, Salvia, Ephedra, Coleogyne, Eriogonum, Pinus monophylla, etc. Rare shrub, to 3 ft. high, 3 ft. wide. 9 1/2 (air) miles ENE of Kelso in upper Globe Canyon, in narrow canyon E of Globe Mine (ca 40 yards above mine). Mid Hills James Henrickson 12767. 9/2/1973 ( CHSC26991 ) . . CalPhotos

Tetradymia stenolepis E. Greene.  Mojave Cottonthorn.
Lobo Point, In scrub with Juniperus osteosperma and Coleogyne ramosissima. Uncommon. Tom Schweich 34. 4/29/1996 ( UC(TAS) ) . . CalPhotos

Thymophylla pentachaeta (DC.) Small var. belenidium (DC.) Strother.  Scale Glandbush.
Mid Hills, Mojave Desert; East Mojave Desert region Mid Hills, Mojave Desert. Alt 5500ft E. C. Jaeger 19400416. 4/15/1940 ( POM254708 ) . . CalPhotos

Undetermined .  Asteraceae Family.
Pinto Mountain, Tom Schweich 309. 5/25/2003 ( Alameda ) . Lobo Point, Uncommon in the Lobo Point Camp. Lobo Point Camp. Tom Schweich 122. 4/30/1997 ( Alameda, More Processing ) . Wild Horse Mesa, White. North slope of Wild Horse Mesa. Tom Schweich 95. 4/29/1997 ( Alameda, More Processing ) Wooly composite. North slope of Wild Horse Mesa. Tom Schweich 93. 4/29/1997 ( Alameda, More Processing ) NWHM, at water tank. Yellow, annual. Tom Schweich 104. 4/29/1997 ( Alameda, More Processing ) . Lobo Point, Common, many heads had no ray flowers. In the watercourse on the south side of the landslide on the east side of Lobo Point. Tom Schweich 246. 6/5/2000 ( UC(TAS) ) . Wild Horse Mesa, East facing slope on Precambrian gneiss and schist with Pinus monophylla, Juniperus osteosperma, and Coleogyne ramosissima. Tom Schweich 274. 4/24/2001 ( UC(TAS) ) Tom Schweich 289. 5/26/2001 ( UC(TAS) ) . . CalPhotos

Berberidaceae

Berberis haematocarpa Wooten.  Red Barberry.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . . CalPhotos

Bignoniaceae

Chilopsis linearis (Cav.) Sweet ssp. arcuata (Fosb.) Henrickson.  Desert Willow.
Cedar Canyon, Knute, Adrienne, 1991 . Kelso Dunes, Vouchers at CAS, DS, CSLA, POM, RSA Thorne, R., B. Prigge, and J. Henrickson, 1981 . Fenner Valley, Rocky streamway. Essex Road, 5.5 miles SE of Mitchell Caverns. C. L. Mercado 97. 5/4/1972 ( SJHERB ) . . CalPhotos

Boraginaceae

Amsinckia .  Fiddleneck.
Wild Horse Mesa, East facing slope on Precambrian gneiss and schist with Pinus monophylla, Juniperus osteosperma, and Coleogyne ramosissima. Tom Schweich 271. 4/24/2001 ( UC(TAS) ) . . CalPhotos

Cryptantha .  Cryptantha.
Lobo Point, Experimental plots in Salvia dorrii. Tom Schweich 313. 5/26/2003 ( Alameda ) . Pinto Mountain, Uncommon,in Winkler Formation (Tertiary lacustrine limestone). South face. Tom Schweich 129. 4/30/1997 ( Alameda, More Processing ) . Wild Horse Mesa, With Swertia albomarginata, Juniperus osteosperma, Pinus monophylla, Coleogyne ramosissima, and Eriogonum fasciculatum. In open areas on limestone. Tom Schweich 222. 4/27/2000 ( UC(TAS) ) . . CalPhotos

Cryptantha clokeyi I. M. Johnston.  Clokey's Cryptantha.
Mojave National Preserve, State-listed plant within the fire perimeter of the Hackberry Complex Fire. Burn Area Emergency Response Team, 2005 . . CalPhotos

Emmenanthe penduiflora Benth.  Whispering Pells.
Wild Horse Mesa, Granitic ridgetop and post-fire pinyon-juniper woodland, with Lotus argyraeus multicaulis, Pinus monophylla, Ericameria linearifolia, Phacelia curvipes. Eastern Mojave Desert Mid Hills: just north of saddle at the N end of Wildhorse Mesa, and just north of white calcareous deposits Jim Andre and T. La Doux 7425. 5/1/2006 ( UCR175392 ) . . CalPhotos

Eucrypta chrysanthemifolia (Benth.) Greene.  Spotted Hideseed.
Macedonia Canyon, Sandy canyon bottom and post-fire pinyon woodland, with Pinus monophylla, Lupinus concinnus, Linanthus aureus aureus, Cryptantha barbigera. Eastern Mojave Desert Mid Hills: upper Macedonia Canyon, c. 0.6 mi west of Wildhorse Canyon Rd. and 1.2 mi ESE of Columbia Mtn Jim Andre 7348. 4/24/2006 ( UCR175591 ) . . CalPhotos

Eucrypta micrantha (Torr.) A. Heller.  Dainty Desert Hideseed.
Globe Canyon (Upper), Creosote scrub, along sandy arroyo. Mojave Desert; Eastern Mojave Desert region 34 air miles SE of Baker, 6 air miles ENE of kelso, 5miles along road to Globe Canyon of Mid Hills, E of Kelso - Cima road, near okaw Mine. alt 4000ft James Henrickson 9212. 4/23/1973 ( RSA270725 ) . . CalPhotos

Nama .  Purple Mat.
Macedonia Canyon, Tom Schweich 284. 4/24/2001 ( UC(TAS) ) . . CalPhotos

Pectocarya penicillata (Hook. & Arn.) A. DC.  Sleeping Combseed.
Macedonia Canyon, Sandy canyon bottom among post-fire pinyon woodland, with Pinus monophylla, Lupinus concinnus, Cryptantha barbigera. Eastern Mojave Desert Mid Hills: upper Macedonia Canyon, c. 1.5 mi west of Wildhorse Canyon Rd. and 1.0 mi south of Columbia Mtn Jim Andre 7371. 4/24/2006 ( UCR175197 ) . Wild Horse Canyon, Burned pinyon woodland with Verbena gooddinggii, Layia glandulosa, Lupinus concinnus. Eastern Mojave Desert Mid Hills: along Wildhorse Canyon Rd., c. 1 mi south of Macedonia Rd. exit Jim Andre 7300. 3/27/2006 ( UCR175240 ) . . CalPhotos

Pectocarya platycarpa (Munz & I.M. Johnst.) Munz & I.M. Johnst.  Broad-Fruited Combseed.
Macedonia Canyon, Sandy canyon bottom among post-fire pinyon woodland, with Pinus monophylla, Lupinus concinnus, Cryptantha barbigera. Eastern Mojave Desert Mid Hills: upper Macedonia Canyon, c. 1.5 mi west of Wildhorse Canyon Rd. and 1.0 mi south of Columbia Mtn Jim Andre 7372. 4/24/2006 ( UCR175198 ) . . CalPhotos

Pectocarya setosa A. Gray.  Moth Combseed.
Round Valley, Eastern Mojave Desert Round Valley, Mid Hills between the Providence and New York Mountains June Latting 5/12/1979 ( UCR142054 ) . Wild Horse Canyon, Juniper woodland on hilly terrain, with Salvia dorrii, Lycium, Prunus fasciculata, Atriplex canescens, Gutierrezia, Opuntia erinacea, Yucca, Coleogyne ramosissima, etc. Eastern Mojave Desert N of Providence Mtns, in Wildhorse Canyon, along road to Mid Hills Campground. B. Pitzer and D. Charlton 793. 5/8/1988 ( UCR53319 ) . . CalPhotos

Phacelia .  Phacelia.
Mid Hills Campground, Tends to be found under Pinyons. Tom Schweich 4/21/2004 . . CalPhotos

Phacelia .  Phacelia.
Lobo Point, Experimental plots in Salvia dorrii. Tom Schweich 312. 5/26/2003 ( Alameda ) . . CalPhotos

Phacelia .  Phacelia.
Lobo Point, In cracks of welded tuff. 2.25 mi (3.5 km) northwest of Hole in the Wall. Tom Schweich 458. 5/28/2005 ( Alameda ) . . CalPhotos

Phacelia .  Phacelia.
Pinto Mountain, Tom Schweich 310. 5/25/2003 ( Alameda ) . Wild Horse Mesa, Tom Schweich 315. 5/26/2003 ( Alameda ) . . CalPhotos

Phacelia .  Phacelia.
Wild Horse Mesa, Purple. North slope of Wild Horse Mesa. Tom Schweich 96. 4/29/1997 ( Alameda, More Processing ) . . CalPhotos

Phacelia campanularia A. Gray ssp. vasiformis G. Gillett.  Desert Bluebells.
Columbia Mine, South facing slope in Precambrian gneiss, with Acacia greggii, Salvia columbariae, Sphaeralcea ambigua, Prunus fasciculata, Ferocactus cylindraceus, and Salazaria mexicana. 300 m northwest of the Columbia Mine. Tom Schweich 187. 4/28/1998 ( UC(TAS) Zzyzx ) . . CalPhotos

Phacelia pedicellata A. Gray.  Specter Phacelia.
Lobo Point, East facing slope among rock outcrops high on Lobo Point. 3 km northwest of Hole-in-the-Wall. Tom Schweich 280. 4/24/2001 ( UC(TAS) ) . . CalPhotos

Plagiobothris .  Popcorn Flower.
Wild Horse Mesa, East facing slope on Precambrian gneiss and schist with Pinus monophylla, Juniperus osteosperma, and Coleogyne ramosissima. Tom Schweich 275. 4/24/2001 ( UC(TAS) ) . . CalPhotos

Plagiobothrys arizonicus (A. Gray) A. Gray.  Arizona Popcornflower.
Lobo Point, Tom Schweich 277. 4/24/2001 ( UC(TAS) ) . . CalPhotos

Brassicaceae (Cruciferae)

Arabis perennans S. Watson.  Perennial Rockcress.
Globe Canyon (Lower), on N-facing slopes along sandy arroyo; ith Hymenoclea, Prunus fasciculata, Fallugia, etc. Mojave Desert; East Mojave Desert region 34 (air) miles SE of Baker, 6 (air) miles ENE of Kelso, 5 miles along Globe Canyon Rd., S of Kelso-Cima Road, towards Mid Hills; elev. 4000 ft. James Henrickson 9215. 4/23/1973 ( RSA270800 ) . Gilroy Canyon, Mojave Desert; East Mojave Desert region Providence Mountains: Middle Gilroy Canyon; elev. ca. 4500 feet. R. F. Thorne, Prigge, Michener, Meyer, and Wisura 51711. 5/25/1978 ( RSA334946 ) . Mid Hills Campground, south-facing slope west of campground, Mid Hills S. A. Junak 1165. 5/15/1982 ( SBBG87461 ) . Wild Horse Mesa, Granitic ridgetop and post-fire pinyon-juniper woodland, with Lotus argyraeus multicaulis, Pinus monophylla, Ericameria linearifolia, Phacelia curvipes. Eastern Mojave Desert Mid Hills: just north of saddle at the N end of Wildhorse Mesa, and just north of white calcareous deposits Jim Andre 7438. 5/1/2006 ( UCR175400 ) . Pinto Mountain, Pinyon woodland. ; USGS quad: Pinto Valley 7.5' Q.; Eastern Mojave Desert Pinto Mountain, near Mid Hills A. C. Sanders 692. 4/27/1976 ( UCR18130 ) . . CalPhotos

Arabis pulchra M. E. Jones ex S. Watson.  Beautiful Rockcress.
Mid Hills, Mojave Desert; East Mojave Desert region Mid Hills. Mojave Desert E. C. Jaeger 5/19/1939 ( POM247692 ) Mojave Desert; East Mojave Desert region Mid Hills, Mojave Desert. Alt 5500ft E. C. Jaeger 4/15/1940 ( POM259075 ) . Bathtub Spring, In granite slopes; with Yuca achidigera, Pinus monophylla, Ephedra, Juniperus, Echinocereus, Opunita chlorotica, etc. Mojave Desert; East Mojave Desert region ca 38(air) miles E of Baker, 7..5 milrs E of Cima at Bathtub Springs area in Mid-hills W of Pinto Valley James Henrickson 9435. 4/29/1973 ( RSA270764 ) . . CalPhotos

Arabis pulchra M. E. Jones ex S. Watson var. gracilis M. E. Jones.  Beautiful Rockcress.
Bathtub Spring, On dry rocky slopes in pinyon-juniper woodland with Pinus monophylla, Juniperus osteosperma, Prunus fasciculata, Yucca schidigera, Echinocereus and Opuntia spp., Ephedra, etc. Mojave Desert; East Mojave Desert region E. Mojave Desert, Mid Hills: 7.5 air mi. E of Cima near Bathtub Springs, W of Pinto Valley; elev. c. 5900 ft. R. F. Thorne 43323. 4/29/1973 ( RSA642738 ) . Cedar Canyon, on rocky desert slope in pinyon-juniper woodland with Yucca schidigera, Y. brevifolia jaegeriana, Juniperus osteosperma, Opuntia, Prunus fasciculata, Thamnosma, Coleogyne, etc. Mojave Desert; East Mojave Desert region Mid Hills: 5.8 miles E of Cima-Kelso Road in Cedar Canyon; elev. c. 5000 ft. R. F. Thorne 43292. 4/29/1973 ( RSA642817 ) . Macedonia Canyon, Sandy canyon bottom and post-fire pinyon woodland, with Pinus monophylla, Lupinus concinnus, Linanthus aureus aureus, Cryptantha barbigera. Eastern Mojave Desert Mid Hills: upper Macedonia Canyon, c. 0.6 mi west of Wildhorse Canyon Rd. and 1.2 mi ESE of Columbia Mtn Jim Andre, Tasha La Doux, and B. G. Baldwin 7338. 4/24/2006 ( UCR175258 ) . Mid Hills Campground, Granitic gravelly soils in post-fire (evidence of fire/camping disturbance) pinyon woodland, with Pinus monophylla, Hymenopappus cooperi, Pectocarya setosa, Astragalus cimae. Eastern Mojave Desert Mid Hills: Mid Hills Campground T. La Doux, and Jim Andre 64. 4/20/2006 ( UCR175522 ) . . CalPhotos

Brassica tournefortii Gouan.  African Mustard.
Mojave National Preserve, Invasive species. May be present in Mojave National Preserve. Burn Area Emergency Response Team, 2005 . . CalPhotos

Descurainia sophia (L.) Webb.  Tansey Mustard.
Mojave National Preserve, Invasive species. May be present in Mojave National Preserve. Burn Area Emergency Response Team, 2005 . . CalPhotos

Halimolobos jaegeri (Munz) Rollins.  Mojave Halimolobos.
Bathtub Spring, Pinyon-Juniper Woodland. Sandy canyon, among granitic-outcropping boulders, with Berberis haematocarpa, Forestiera neomexicana, Pinus monophylla, Purshia glandulosa, etc Mojave Desert; East Mojave Desert region E. Mojave Desert, Mid Hills: near Bathtub Springs; elev. c. 5800 ft. R. F. Thorne and C. W. Tilforth 44064. 6/21/1973 ( RSA247877 ) . . CalPhotos

Lepidium latifolium L.  Broad-Leaved Pepper-Grass.
Mojave National Preserve, Invasive species. May be present in Mojave National Preserve. Burn Area Emergency Response Team, 2005 . . CalPhotos

Sisymbrium irio L.  London Rocket.
Mojave National Preserve, Invasive species. May be present in Mojave National Preserve. Burn Area Emergency Response Team, 2005 . . CalPhotos

Stanleya pinnata (Pursh) Britton var. pinnata.  Prince's Plume.
Wild Horse Mesa, North slope of the Mesa, colony under Pinyon Pine, beside old roads. 278 km northeast of Los Angeles, California. Tom Schweich 250. 6/5/2000 ( UC(TAS) Zzyzx ) . . CalPhotos

Thysanocarpus curvipes Hook.  Sand Fringepod.
Cedar Canyon, in protection of bushes, granite sand Mid Hills Cedar Canyon (Cedar Canyon, Providence Mts.) - Providence Mts., , Mid Hills W. L. Jepson 18335. 5/9/1937 ( JEPS54229 ) . . CalPhotos

Undetermined .  Brassicaceae Family.
Lobo Point, Uncommon in the Lobo Point Camp. Lobo Point Camp. Tom Schweich 124. 4/30/1997 ( Alameda, More Processing ) . Wild Horse Mesa, On Winkler Formation below Swertia albomarginata experimental plot. Tom Schweich 270. ( UC(TAS) ) . . CalPhotos

Cactaceae

Echinocereus engelmannii (Engelm.) Lemaire.  Engelmann's Hedgehog Cactus.
Lobo Point, . Cedar Canyon, Knute (1991) identifies as var. chrysocentrus. Knute, Adrienne, 1991 . . CalPhotos

Echinocereus triglochidiatus Engelm.  Three-Spine Hedgehog Cactus.
Wild Horse Mesa, . . CalPhotos

Escobaria vivipara.  Beehive Cactus.
Lobo Point, . . CalPhotos

Escobaria vivipara (Nutt.) Buxb. var. rosea (Clokey) D. R. Hunt.  Viviparous Foxtail Cactus.
Caruthers Canyon, Collectors notes state 4th of July Canyon. Annie M. Alexander and Louise Kellogg 1433. 5/12/1940 ( UC ) . . CalPhotos

Ferocactus cylindraceus (Engelm.) Orc.  Barrel Cactus.
Cedar Canyon, Knute, Adrienne, 1991 . Pinto Mountain, . . CalPhotos

Opuntia acanthocarpa Engelm. & J. Bigelow var. coloradensis L. Benson.  Buckhorn Cholla.
Lobo Point, . Cedar Canyon, Knute, Adrienne, 1991 . Wild Horse Canyon, On the road to north Wild Horse Mesa, sandy wash. 279 km northeast of Los Angeles, California. Tom Schweich 254. 6/5/2000 ( UC(TAS) Zzyzx ) . . CalPhotos

Opuntia basilaris Engelm. & J. Bigelow.  Beavertail Cactus.
Lobo Point, . Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Opuntia chlorotica Engelm. & J. Bigelow.  Pancake Prickly-Pear.
Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Opuntia echinocarpa Engelm. & J. Bigelow.  Silver Cholla.
Wild Horse Canyon, . . CalPhotos

Opuntia erinacea Engelm. & J. Bigelow var. erinacea.  (=Opuntia polyacantha Haw. var. erinacea (Engelm. & Bigelow) Parfitt) Mojave Prickly-Pear.
Clark Mountain, Vasek, F. C., and R. F. Thorne, 1988 . Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . . CalPhotos

Opuntia phaeacantha Engelm.  (Syn: Opuntia mojavensis Engelm. & J. Bigelow ) Tulip Prickly-Pear.
Clark Mountain, Vasek, F. C., and R. F. Thorne, 1988 . Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . . CalPhotos

Cappar[id]aceae

Isomeris arborea Nutt.  Bladderpod.
Cima Volcanic Field, Alongside Kelbaker road on west side of Cima Volcanic Field. Tom Schweich 4/22/2001 . . CalPhotos

Caprifoliaceae

Symphoricarpos longiflorus A. Gray.  Fragrant Snowberry.
Lobo Point, Along wash in shaded area, 2 km WNW of Hole-in-the-Wall. Tom Schweich 179. 5/29/1999 ( Alameda, Ready to Mount ) 3 km northwest of Hole-in-the-Wall. Found in one location, alongside wash,growing up the rocky slope, shaded by Pinyon Pines. Tom Schweich 286. 5/25/2001 ( UC(TAS) ) In shade beside wash with Pinus monophylla and Rhus trilobata. Uncommon. Tom Schweich 35. 4/29/1996 ( Zzyzx ) 3 km northwest of Hole-in-the-Wall. Found in one location, alongside wash,growing up the rocky slope, shaded by Pinyon Pines. Tom Schweich 286. 5/25/2001 ( Zzyzx ) . . CalPhotos

Caryophyllaceae

Arenaria macradenia S. Watson var. mcaradenia.  (=Eremogone macradenia (S. Watson) Ikonn. var. macradenia ) Desert Sandwort.
Wild Horse Mesa, Granitic ridgetop and post-fire pinyon-juniper woodland, with Lotus argyraeus multicaulis, Pinus monophylla, Ericameria linearifolia, Phacelia curvipes. Eastern Mojave Desert Mid Hills: just north of saddle at the N end of Wildhorse Mesa, and just north of white calcareous deposits Jim Andre and T. La Doux 7441. 5/1/2006 ( UCR175398 ) . . CalPhotos

Eremogone macradenia (S. Watson) Ikonn. var. macradenia.  (Syn: Arenaria macradenia S. Watson var. mcaradenia ) Desert Sandwort.
Wild Horse Mesa, Open places on lacustrine limestone. North slope of Wild Horse Mesa, 5 km WNW of Hole-in-the-Wall. Tom Schweich 189. 5/29/1999 ( UC(TAS) ) . . CalPhotos

Chenopodiaceae

.  Unknown Chenopod.
Pinto Mountain, South slope of the mountain. 289 km northeast of Los Angeles, California. Tom Schweich 199. 9/26/2000 ( Alameda, More Processing ) . . CalPhotos

Crassulaceae

Dudleya saxosa (M. E. Jones) Britton & Rose ssp. aloides (Rose) Moran.  Desert Dudleya.
Kelso Mountains, Westside in ravines. Tom Schweich 4/22/2001 . Bonanza King Canyon, Occasional, in crevice of limestone outcrop. Mouth of the canyon. Tom Schweich 15. 5/25/1993 ( UC(TAS) ) . . CalPhotos

Cucurbitaceae

Curcurbita palmata S. Watson.  Coyote Melon.
Cedar Canyon, . . CalPhotos

Ericaceae

Arctostaphylos pungens Kunth.  Pointleaf Manzanita.
Caruthers Canyon, Vasek, F. C., and R. F. Thorne, 1988 . . CalPhotos

Euphorbiaceae

Chamaesyce .  Sand Mat.
Wild Horse Mesa, In the old road. Tom Schweich 220. 4/27/2000 ( UC(TAS) ) . . CalPhotos

Chamaesyce albomarginata (Torrey & A. Gray) Small.  Rattlesnake Weed.
Cedar Canyon, Knute, Adrienne, 1991 . . CalPhotos

Euphorbia .  Spurge.
Lobo Point, Near Lobo Point, on rocks, faulted rhyolite with Salvia mohavensis, Rhus trilobata, Eriogonum fasciculatum, and Ferocactus cylindracus. Tom Schweich 84. 4/28/1997 ( Alameda, More Processing ) . . CalPhotos

Fabaceae (Leguminosae)

Acacia greggii A. Gray.  Catclaw.
Lobo Point, . Cedar Canyon, Knute (1991) identifies as var. arizonica. Knute, Adrienne, 1991 . Macedonia Canyon, 9.5 miles SE of Kelso, 2.8(rd) miles W of Wild Horse Canyon Road along the Macedonia Canyon in Mid-Hills James Henrickson 11159. 7/7/1973 ( RSA270293 ) . Lobo Point, This small shrub on the exposed eastern slope was the only one seen in bloom. On landslide east side of Lobo Point. Tom Schweich 244. 6/5/2000 ( UC(TAS) Zzyzx ) . . CalPhotos