Eastern Mojave Vegetation Field Notes (Continued)  
 

Tom Schweich  

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Contents
Literature Cited
   When I first read the field notes of Annie Alexander and Louise Kellogg, I was fascinated by the descriptions they wrote about the places they went and the plants and animals they found there. By publishing my field notes on the Internet I hope to follow a little bit in their tradition.

 

 

   

 

2022

 

 

   

 

January, 2022

Visiting family in Spain, from 1 January to 10 January.

 

Locations: Reserva Natural Concertada Dehesa de Abajo.
Full Size ImageArisarum simorhinum Durieu “Friar's Cowl”
Full Size ImageView from a bluff in La Dehesa de Abajo in the direction of Coria del Rio.  

 

La Dehesa de Abajo

 

 

 

Other articles:
• Arapahoe Street:   near 5th;   near 5th;
Full Size ImagePlugged storm drain at 5th and Arapahoe
Full Size ImageUncleared snow and ice at 5th and Arapahoe.  

 

Saturday, 15 January 2022

 

Other articles:
• 5th Street:   near Arapahoe;
Full Size ImageFirst floor under construction.
Full Size ImageConstruction progress, 14 Feb 2022.  

  Walk around the neighborhood.

Other articles:
• 5th Street:   near Arapahoe;
Full Size ImageConstruction progress, 126 Feb 2022.  

   

 

Locations: Stonebridge Homeowners Association.  

 

Sunday, April 3rd

Stonebridge Tour

 

Locations: Clear Creek Canyon Park.  

 

Monday, April 18th

Clear Creek Canyon

 

Locations: Wheat Ridge.  

 

Wednesday, April 20th

Wheat Ridge Siren Test

 

Locations: Dakota Ridge.  

 

Tuesday, April 26th

Dakota Ridge

One purpose of this trip was to search for Anemone patens var. multifida. None was found.
  2757    Leucocrinum montanum

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Anthericeae

Leucocrinum montanum Nutt. ex A. Gray.  Star Lily.

Dakota Ridge, Jefferson County, Colorado. Lower slopes of hogback in northernmost Golden, 4.1 km. north northwest of the GNIS location of Golden. 39.7811N, 105.2377W. WGS 1984 Elev. 1867 m. Southwest facing slope: with Euphorbia esula, Grindelia squarrosa, Taraxacum officinale, Gutierrezia sarothrae, Artemisia ludoviciana, A. frigida, Andropogon gerardi, and Coryphantha vivipara.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich 2757. 26-Apr-2022

Sent to EIU.

  2758    Leucocrinum montanum

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Anthericeae

Leucocrinum montanum Nutt. ex A. Gray.  Star Lily.

Dakota Ridge, Jefferson County, Colorado. Lower western slope of hogback in northernmost Golden, 4.3 km. north northwest of the GNIS location of Golden. 39.7822N, 105.2384W. WGS 1984 Elev. 1873 ,. Also here: Linum lewisii, Bromus inermis, Yucca glauca, and Liatris punctata. Seven plants here; one collected.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich 2758. 26-Apr-2022

  2759    Nothocalais cuspidata

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Nothocalais cuspidata (Pursh) Greene.  Prairie False Dandelion.

Dakota Ridge, Jefferson County, Colorado. Lower western slope of hogback in northernmost Golden, 4.2 km. north northwest of the GNIS location of Golden. 39.7817N, 105.2383W. WGS 1984 Elev. 1873 m. About ¼ up the west limb, sparsely vegetated soil; with Rhus trilobata, Yucca glauca, Linum lewisii, Eriogonum alatum, Poa sp., and Euphorbia esula.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich 2759. 26-Apr-2022

Sent to CS.

  2760    Prunus americana

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Rosaceae

Prunus americana Marshall.  American Plum.

Dakota Ridge, Jefferson County, Colorado. South end of hogback in northernmost Golden, 4.0 km. north northwest of the GNIS location of Golden. 39.7805N, 105.2371W. WGS 1984 Elev. 1855 m. Starting to bloom, leaves not emerged yet. South end of clay mines, behind the fence, with Pinus ponderosa. (I reached through the fence to make the collection; did not climb over it.)

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich 2760. 26-Apr-2022

 

Locations: 407 Garden Street.  

 

Thursday, 28 April 2022

Working in Cathy's garden.

 

Locations: Colorado School of Mines Survey Field.  

 

Friday, 29 April 2022

Colorado School of Mines Survey Field

One purpose of this trip was to search for Anemone patens var. multifida. None was found.

 

Locations: Delong Park.  

 

Friday, 6 May 2022

Weeding at DeLong Park.
  2761    Ranunculus testiculatus
  2762    Chorispora tenella
  2763    Polygonum aviculare

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Polygonaceae

Polygonum aviculare L.  Prostrate Knotweed.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Adventive annual weed found in hydroseeded beds. Collected to prepare educational materials for City of Golden volunteer weeding program.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2763. 6-May-2022

  2764    Erodium cicutarium

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Geraniaceae

Erodium cicutarium (L.) L'Her. ex Aiton.  Hemlock-leav'd Crane's-bill.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Annual or biennial. Colorado Noxious Weed List C.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2764. 6-May-2022

  2765    Capsella bursa-pastoris.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Brassicaceae

Capsella bursa-pastoris (L.) Medik.  Shepherd's Purse.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Annual.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2765. 6-May-2022

  2766    Lepidium draba

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Brassicaceae

Lepidium draba L.  White Top.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Adventive annual. Colorado Noxious Weed List B.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2766. 6-May-2022

  2767    Euphorbia myrsinites.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Euphorbiaceae

Euphorbia myrsinites L.  Myrtle Spurge.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Known to be in this parcel before construction. Colorado Noxious Weed List A.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2767. 6-May-2022

  2768    Conium maculatum.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Apiaceae

Conium maculatum L.  Common Poison Hemlock.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Growing on side of small watercourse, probably pre-dates designation of park and construction. Colorado Noxious Weed List C.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2768. 6-May-2022

  2769    Chenopodium album.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Chenopodiaceae

Chenopodium album L.  Lambsquarters.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Annual adventive weed.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2769. 6-May-2022

  2770    Lamium amplexicaule.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Lamiaceae

Lamium amplexicaule L.  Henbit.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. 39.7486N, 105.2082W. WGS 1984 Elev. 1761 m. Annual adventive weed.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2770. 6-May-2022

  2771    Descurainia incisa

Full Size ImageColl. No. 2772, Onopordum acanthium  
2772    Cirsium sp.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Onopordum acanthium L.  Scotch Cottonthistle.
     (Determination tentative.)

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Basal rosette, new growth densely tomentose.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2772. 6-May-2022


Full Size ImageColl. No. 2773, Cirsium arvense  
2773    Cirsium arvense

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Cirsium arvense (L.) Scop.  Canada Thistle.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Basal leaves, shallowly dentate, spinulose; petiole narrowly winged, bases tapered. Colorado Noxious Weed List B.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2773. 6-May-2022

  2774    Convolvulus arvensis.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Convolvulaceae

Convolvulus arvensis L.  Field Bindweed.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Colorado Noxious Weed List C.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2774. 6-May-2022

  2775    Kochia scoparia.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Chenopodiaceae

Kochia scoparia (L.) Schrad.  Common Red Sage.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Seedlings. Sterile.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2775. 6-May-2022

  2775.1    Eschscholzia californica
  2776    Onopordum acanthium

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Onopordum acanthium L.  Scotch Cottonthistle.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. The leaves have been lightly brushed to remove sand, but this has affected the tomentum. Colorado Noxious Weed List B.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2776. 6-May-2022

  2776.1    Nepeta sp.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Lamiaceae

Nepeta racemosa Lam.  Persian Catmint.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Purple cast throughout plant, inflorescence immature, possibly N. racemosa Lam. rather than the more common N. cataria L.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2776.1 6-May-2022

  2777    Rumex crispus.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Polygonaceae

Rumex crispus L.  Curley Dock.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden. Sterile specimen, determination tentative.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2777. 6-May-2022

  2778    Lactuca serriola.

Native and Naturalized Flora of the Golden Area, Jefferson County, Colorado
Asteraceae

Lactuca serriola L.  Prickly Lettuce.

Delong Park, Jefferson County, Colorado. New city park (construction in 2021 and 2022) near the intersection of 23rd Street and Vernon Drive, 1.75 km. southeast of the GNIS location of Golden.

Collected by permit: City of Golden, 2022, issued: Mar 17, 2022, to: Tom Schweich.

Tom Schweich, with Carol Cameron & David Chavez 2778. 6-May-2022

 

Locations: Apex Park - Northern Parcel.
Full Size ImageDodecatheon pulchellum and Prunus americana in Apex Park.
Full Size ImageRanunculus ranunculinus in a small seep.  

 

Tuesday, 10 May 2022

Apex Park - North, with Cindy Trujillo.
  2779    Dichanthelium oligosanthes ssp. scribnerianum.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Poaceae

Dichanthemium oligosanthes (J. A. Schultes) Gould ssp. scribnerianum (Nash) Freckmann & Lelong.  Few-Flowered Panicgrass.

Apex Park - Northern Parcel, Jefferson County, Colorado. Unnamed gulch about 1/3 of the way up the initial Front Range scarp, 3.75 km. south of the GNIS location of Golden. 39.7219N, 105.2204W. WGS 1984 Elev. 1938 m. Growing in fractures in rocks.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2779. 10-May-2022

  2779.1    Annual grass with odd “awn.”

Plants of Jefferson County Open Space
Jefferson County, Colorado
Poaceae

Poa bulbosa L.  Bulbous Bluegrass.

Apex Park - Northern Parcel, Jefferson County, Colorado. Unnamed gulch about 1/3 of the way up the initial Front Range scarp, 3.75 km. south of the GNIS location of Golden. 39.7219N, 105.2377W. WGS 1984 Elev. 1938 m. Immature. In soil near but not in the creek.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2779.1 10-May-2022

 

Locations: Windy Saddle Park.  

 

Tuesday, 17 May 2022

Windy Saddle Park from the Buffalo Bill Museum to the Survey Field.

Full Size ImageColl. No. 2780, Clematis columbiana  
2780    Clematis columbiana.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Ranunculaceae

Clematis columbiana (Nutt.) Torr. & A. Gray.  Rock Clematis.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 100 m.northeast of, and downslope from, the Buffalo Bill Museum, and 3.6 km. southwest of the GNIS location of Golden. 39.7338N, 105.2377W. WGS 1984 Elev. 2202 m. Petals light-lavender. Near top of initial Front Range slope in Douglas Fir forest with Acer glabrum “Rocky Mountain Maple,” Berberis repens, and Mertensia lanceolata. Variety columbiana if infraspecific names are to be applied.

Collected by permit: Jefferson County Open Space, 2021, issued: Apr 1, 2021, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2780. 17-May-2022

  2781    Berberis repens.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Berberidaceae

Berberis repens Lindl.  Creeping Barberry.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 100 m.northeast of, and downslope from, the Buffalo Bill Museum, and 3.6 km. southwest of the GNIS location of Golden. 39.7338N, 105.2377W. WGS 184 Elev. 2210 m. Open forest floor near top of initial Front Range slope in Douglas Fir forest with Acer glabrum “Rocky Mountain Maple,” Clematis columbiana, and Mertensia lanceolata.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2781. 17-May-2022


Full Size ImageColl. No. 2782, Noccaea fendleri  
2782    Lepidium ?

Plants of Jefferson County Open Space
Jefferson County, Colorado
Brassicaceae

Noccaea fendleri (A. Gray) Holub ssp. glauca (A. Nelson) Al-Shehbaz & M. Koch.  Alpine Pennycress.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 140 m. east of, and downslope from, the Buffalo Bill Museum, and 3.6 km. southwest of the GNIS location of Golden. 39.7337N, 105.2372W. WGS 1984 Elev. 2202 m. Glabrous, basal rosette, clasping stem leaves auriculate, fruit flattened 90 to replum, petals white, Open forest, Pseudotsuga menziesii, Berberis repens, Frasera speciosa, Taraxacum officinale, small patch ± 60 plants. Subspecies glauca is the only infraspecific taxon known from Colorado.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2782. 17-May-2022

  2783    Viola canadensis.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Violaceae

Viola canadensis L.  Canadian White Violet.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 375 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.36 km. southwest of the GNIS location of Golden. 39.7353N, 105.2358W. WGS 1984 Elev. 2070 m. Edge of Douglas fir forest at bottom of canyon; seen nearby: Anemone patens, Ribes cereum, Amelanchier alnifolia, Acer glabrum, Galium boreale, and Anaphalis margaritacea.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2783. 17-May-2022

  2784    Anaphalis margaritacea.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Asteraceae

Anaphalis margaritacea (L.) Bentham & Hooker.  Western Pearly Everlasting.

Windy Saddle Park, Jefferson County, Colorado. Southeast corner of Windy Saddle Park, about 480 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.30 km. southwest of the GNIS location of Golden. 39.7354N, 105.2349W. WGS 1984 Elev. 2047 m. Sunny spot at edge of Douglas fir forest, also seen here: Anemone patens, Amelanchier alnifolia, and Viola canadensis.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2784. 17-May-2022

Locations: Unnamed Spring.
Full Size ImageSpring in Windy Saddle Park
Full Size ImageColl. No. 2785, Maianthemum stellatum  

2785    Maianthemum stellatum.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Ruscaceae

Maianthemum stellatum (L.) Link.  Starry False Lily of the Valley.

Windy Saddle Park, Jefferson County, Colorado. Around an unnamed spring in the southeast corner of Windy Saddle Park, about 610 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.17 km. southwest of the GNIS location of Golden. 39.736N, 105.234W. WGS 1984 Elev. 2018 m. Also here: Juniperus scopulorum, Noccaea fendleri, Prunus americana, Rubus idaeus var. strigosus, and Frasera speciosa.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2785. 17-May-2022

  2786    Carex sp.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Cyperaceae

Carex praegracilis W. Boott.  Clustered Field-Sedge.

Windy Saddle Park, Jefferson County, Colorado. Unnamed gulch above the Colorado School of Mines Survey Field, beside flowing water from a mine adit, 830 m. northeast of, and downslope from, the Buffalo Bill Museum, and 3.00 km. southwest of the GNIS location of Golden. 39.7367N, 105.2322W. WGS 1984 Elev. 1957 m. Also collected nearby from this or previous visits: Campanula rotundifolia, Pseudostellaria jamesiana, and Monarda fistulosa.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2786. 17-May-2022


Full Size ImageColl. No. 2787, Pseudostellaria jamesiana  
2787    Pseudostellaria jamesiana.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Caryophyllaceae

Pseudostellaria jamesiana (Torr.) W. A. Weber & R. L. Hartm.  Tuber Starwort.

Windy Saddle Park, Jefferson County, Colorado. Unnamed gulch above the Colorado School of Mines Survey Field, 875 m. northeast of, and downslope from, the Buffalo Bill Museum, and 2.97 km. southwest of the GNIS location of Golden. 39.7368N, 105.2318W. WGS 1984 Elev. 1950 m. Growing in rock outcrops on northwest side of a ridge, among Juniperus scopulorum and Cercocarpus montanus.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2787. 17-May-2022

 

Other articles:
• Arapahoe Street:   near 5th;
Full Size ImageLate spring snow storm brings down branches.  

 

Saturday, 21 May 2022

Spring snow storm.

   

 

Friday, 27 May 2022

Pre-walk of Colorado Native Plant Society field trip to the mouth of Clear Creek Canyon.

 

Other articles:
• Welch Ditch:   at road;
• Peaks to Plains Trail:   along trail;
Full Size ImageField trip waits out a shower.
Full Size ImageEvolvulus nuttallianus seen along the Welch Ditch  

 

Sunday, 29 May 2022

Colorado Native Plant Society field trip to the mouth of Clear Creek Canyon.

   

 

Monday, 30 May 2022, Memorial Day

Memorial Day service at Rockland Church and beautiful view from the Buffalo Bill Museum.

Locations: Rockland Cemetery.
Full Size ImageHolstein plot at the Rockland Cemetary.  

  Holstein plot at the Rockland Cemetary. Ralston plot in the background.

Locations: Buffalo Bill Memorial Museum.
Full Size ImageGolden from the Buffalo Bill Museum.
Full Size ImageDenver from the Buffalo Bill Museum.  

  View from Buffalo Bill Museum.

 

Other articles:
• 8th Avenue:   at Edgar Mine;
• Colorado Boulevard:   at 9th;

Locations: Edgar Mine. Idaho Springs.
Full Size ImagePhysaria vitulifera at the Edgar Mine.  

 

Tuesday, 31 May 2022

Visited the Edgar Mine in Idaho Springs as a possible collecting locality for Physaria vitulifera.
Full Size Image
Physaria vitulifera at the Edgar Mine.
Full Size Image
Edgar Mine from the opposite ridge.
Full Size Image
West end of Idaho Springs
Full Size Image
Central Idaho Springs

   

 

Thursday, 2 June 2022

Weeding at DeLong Park.

 

Other articles:
• Crawford Street:   at curve;

Locations: Apex Park - Northern Parcel. City of Golden Parcel 40-102-01-032.
Full Size ImageCity of Golden, Jefferson County, and Stonebridge parcels.  

 

Friday, 10 June 2022

Apex north and adjacent Golden parcel.
Full Size Image
Boundary between Apex Park and Stonebridge HOA
Full Size Image
Boundary between Apex Park and Stonebridge HOA

Full Size ImageColl. No. 2788, Rhamnus cathartica
Full Size ImageFlower of Coll. No. 2788, Rhamnus cathartica  
2788    Rhamnus cathartica.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rhamnaceae

Rhamnus cathartica L.  European Buckthorn.

Apex Park - Northern Parcel, Jefferson County, Colorado. Just insude the northeast corner of Apex Park - North, about 61 m. from the northeast property corner, 4.43 km. south of the GNIS location of Golden 39.7251N, 105.2171W. WGS 1984 Elev. 1842 m. Lf. margin crenate, teeth with dark gland, style 4-parted. Beside intermittent stream, edge of Prunus americana thicket, with Arctium minus and Cynoglossum officinale. At least three plants here. Introduced to Colorado; escaping from cultivation into canyons and along streams.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2788. 10-Jun-2022

  2789    Helianthus pumilus.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Asteraceae

Helianthus pumilus Nutt.  Little Sunflower.

Apex Park - Northern Parcel, Jefferson County, Colorado. Along the northern border of the northwest corner, 250 m. from the northwest corner, and 4.37 km. south of the GNIS location of Golden. 39.7254N, 105.2191W. WGS 1984 Elev. 1867 m. Shortgrass prairie with Artemisia frigida, A. ludoviciana, Heterotheca villosa, Opuntia polyacantha, Eriogonum umbellatum, Tradescantia occidentalis, and Bromus tectorum.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2789. 10-Jun-2022


Full Size ImageColl. No. 2790, Opuntia polyacantha, 10 Jun 2022  
2790    Opuntia polyacantha
  2791    Lithospermum occidentale.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Boraginaceae

Lithospermum occidentale (Mack.) Weakley, Witsell & D. Estes.  Western Marbleseed.

Apex Park - Northern Parcel, Jefferson County, Colorado. Near bottom of unnamed gulch, along the border with Stonebridge HOA, 256 m. west of the northeast corner, 4.37 km. south of the GNIS location of Golden. 39.7254N, 105.2192W. WGS 1984 Elev. 1862 m. In a thicket of Prunus americana and Rhus trilobata

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2791. 10-Jun-2022

  2792    Sphaeralcea coccinea.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Malvaceae

Sphaeralcea coccinea (Nutt.) Rydb.  Cowboy's Delight.

Apex Park - Northern Parcel, Jefferson County, Colorado. Near the north border with Stonebridge HOA, 220 m. west southwest from the corner, 4.47 km. south of the GNIS location of Golden. 39.7248N, 105.2186W. WGS 1984 Elev. 1867 M. Across the top of a small alluvial ridge, also here: Artemisia dracunculus, Helianthus pumilus, Xanthisma spinulosum, Alyssum simplex, Bromus tectorum, and Hesperostipa comata.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2792. 10-Jun-2022


Full Size ImageHabitat of Coll. No. 2793, Crepis occidentalis (golf balls for scale).  
2793    Crepis occidentalis

 

Locations: Edgar Mine.  

 

Monday, 13 June 2022

Edgar Mine, Idaho Springs, Colorado

Full Size ImageColl. No. 2794, Physaria vitulifera
Full Size ImageFruit of Coll. No. 2794, Physaria vitulifera
Full Size ImageLeaves of Coll. No. 2794, Physaria vitulifera  
2794    Physaria vitulifera.

Plants of Colorado
Brassicaceae

Physaria vitulifera Rydb. Bull. Torrey Bot. Club 28: 278. 1901.  Roundtip Twinpod.

Edgar Mine, Clear Creek County, Colorado. 153 m. east southeast of the mine portal, 1.36 km. west northwest of the GNIS location of Idaho Springs. 39.7473N, 105.5241W. WGS 1984 Elev. 2392 m. Southeast facing slope, with Juniperus scoparia and Cercocarpus montanus. Leaves collected for DNA analysis. Approximate topotype.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Tom Schweich 2794. 13-Jun-2022


Full Size ImageColl. No. 2795, Physaria vitulifera
Full Size ImageFruit of Coll. No. 2795, Physaria vitulifera
Full Size ImageLeaves of Coll. No. 2795, Physaria vitulifera  
2795    Physaria vitulifera.

Plants of Colorado
Brassicaceae

Physaria vitulifera Rydb. Bull. Torrey Bot. Club 28: 278. 1901.  Roundtip Twinpod.

Edgar Mine, Clear Creek County, Colorado. 140 m. east of the mine portal, 1.37 km. west northwest of the GNIS location of Idaho Springs. 39.7475N, 105.5241W. WGS 1984 Elev. 2402 m. With Juniperus scoparia and Cercocarpus montanus. Basal leaves removed for DNA analysis. Approximate topotype.

Collected by permit: Colorado School of Mines, Edgar Mine 2022, issued: May 31, 2022, to: Tom Schweich.

Tom Schweich 2795. 13-Jun-2022

  2796    Physaria montana

Full Size ImageHabitat of Coll. No. 2797, Physaria vitulifera  
2797    Physaria vitulifera
  2798    Packera fendleri
  2799    Scutellaria brittonii
  2800    Penstemon virens

Full Size ImageHabitat of Coll. No. 2801, Physaria vitulifera  
2801    Physaria vitulifera

Full Size ImageHabitat of Coll. No. 2802, Boechera sp.  
2802    Boechera sp.

Full Size ImageHabitat of Coll. No. 2803, Physaria vitulifera
Full Size ImageColl. No. 2803, Physaria vitulifera  
2803    Physaria vitulifera

Full Size ImageColl. No. 2804, Physaria vitulifera  
2804    Physaria vitulifera

 

Locations: Coal Creek. Ranson/Edwards Homestead Open Space Park.
Full Size ImageEchinocereus viridiflorus on a terrace of Coal Creek.
Full Size ImageTerrace of Coal Creek in Jefferson County.  

 

Wednesday, 15 June 2022

Ranson/Edwards
  2805    Physocarpus montanus
  2806    River grape sterile
  2807    River grape in flower.
  2808    Hesperis matronalis

Full Size ImageColl. No. 2809, Astragalus, maybe A. bisulcatus.  
2809    Astragalus, maybe A. bisulcatus.

   

 

Monday, 20 June 2022

Weeding at DeLong Park
  2810     

 

Locations: Ranson/Edwards Homestead Open Space Park.  

 

Tuesday, 21 June 2022

Ranson/Edwards
  2811    Amorpha fruticosa
  2812    Salix sp.

Full Size ImageColl. No. 2813, Papaver orientale.
Full Size ImageColl. No. 2813, Papaver orientale.
Full Size ImageCapsules of Coll. No. 2813, Papaver orientale.  
2813    Very large, bright red poppy.

Full Size ImageSmall vine of Humulus lupulus  
  Small vine of hops Humulus lupulus on a bar of Coal Creek.

   

 

Wednesday, 22 June 2022

 

Other articles:
• 8th Street:   at 8th St Aparts.;
Full Size ImageTribulus terrestris growing in a crack between sidewalk and wall.  

  Saw some of this on the walk home from the Community Center.

Other articles:
• 5th Street:   near Maple;
Full Size ImageCultivated Knautia arvensis beside driveway.  

  Knautia arvensis (L.) J. M. Coult. in the front yard of 1202 5th Street.
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Date and time this article was prepared: 6/26/2022 3:11:22 PM