Query:

(Syn: North Washington Open Space)

See also: Golden.

Field trips:

• 13 May 2018, CoNPS
• 17 June 2018, CoNPS
• 21 July 2018, CoNPS
• 4 June 2019, Parks, Recreation and Museums Advisory Board.
• 25 June 2019, Stewards of Golden Open Space.

Elevation: 5945ft, 1812m.

Articles that refer to this location:

• How did rubber rabbitbrush get that long scientific name?: Introduction; 
• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Schweich Hill;  Fremont, 1843;  Comandra umbellata ssp. pallida;  Eriogonum arcuatum;  Claytonia rosea;  Prunus pensylvanica;  Rosa arkansana;  Astragalus agrestis;  Astragalus crassicarpus;  Echinocereus viridiflorus;  Escobaria missouriensis;  Opuntia macrorhiza;  Opuntia polyacantha;  Evolvulus nuttallianus;  Cryptantha virgata;  Achillea millefolium;  Artemisia dracunculus L.;  Cirsium undulatum;  Ericameria nauseosa graveolens;  Erigeron divergens;  Nothocalais cuspidata;  Packera tridenticulata;  Senecio spartioides;  Solidago missouriensis;  Thelesperma megapotamicum;  Bouteloua dactyloides;  Elymus elymoides;  Poa secunda;  Sporobolus cryptandrus;  Vulpia octoflora;  Toxicoscordion paniculatum;  Euphorbia myrsinites;  Saponaria officinalis;  Elaeagnus angustifolia;  Linaria dalmatica;  Dipsacus laciniatus;  Centaurea diffusa;  Aegilops cylindrica;  Erodium cicutarium;  Tribulus terrestris;  Verbascum thapsus;  Gypsophila paniculata;  Agropyron cristatum;  Bromus carinatus;  Festuca idahoensis;  Festuca saximontana;  Poa pratensis;  Thinopyrum intermedium;  Triticum aestivum;  Sisymbrium altissimum;  Thlaspi arvense;  Juniperus virginiana;  Rumex crispus;  Chenopodium album;  Stellaria media;  Colutea arborescens;  Malva neglecta;  Lamium amplexicaule;  Lonicera tatarica;  Campanula glomerata;  Notes on Delphinium nuttallianum;  Notes on Campanula glomerata;  Notes on Packera fendleri;  Notes on Senecio spartioides; 
• Social Trail (N. Ford St. to Jackson Dr.), Golden, Jefferson County, Colorado: at trl jct; 
• Social Trail across Schweich Hill, Golden, Jefferson County, Colorado: west of top;  at top; 
• (New) Social Trail, Schweich Hill, Golden, Jefferson County, Colorado: at top; 
• Washington, Avenue, Golden, Jefferson County, Colorado: near Rubey; 
• Field Notes: 27 Feb 2017;  25 Mar 2017;  27 Mar 2017;  Coll. No. 1591, 2 May 2017;  Obs. No. 1540, 2 May 2018;  Obs. No. 1541, 2 May 2018;  Coll. No. 1593, 2 May 2017;  15 May 2017;  30 May 2017;  8 Jun 2017;  16 Jun 2017;  20170714010;  31 Aug 2017;  Friday, November 11th;  20180311010;  Coll. No. 1775, 11 Apr 2018;  Coll. No. 1776, 11 Apr 2018;  28 Apr 2018;  6 May 2018;  13 May 2018;  18 May 2018;  Coll. No. 1856, 18 May 2018;  15 Jun 2018;  Thursday, July 19th;  18 Mar 2019;  16 Apr 2019;  25 May 2019;  14 Jun 2019;  25 Jun 2019;  26 Jun 2019;  11 August 2019;  12 Sep 2019;  2019 Year-end Review;  24 April 2020;  12 May 2020;  6 Jun 2020;  24 July 2020;  16 May 2021;  2 Sep 2021;  25 Sep 2021;  20 Sep 2022;  10 Apr 2023;  27 Apr 2023;  4 May 2023;  8 May 2023;  26 May 2023;  30 May 2023;  2 Jun 2023;  2 Jun 2023;  Obs. No. 3359, 28 Jul 2023;  5 Sep 2023;  6 Sep 2023;  12 Sep 2023;  26 Sep 2023;  10 Apr 2024;  30 Apr 2024;  22 May 2024;  20 Jun 2024; 

Literature Referring To This Location:

• Fremont, John C. 1845. The Exploring Expedition to the Rocky Mountains in the year 1842, and to Oregon and North California in the years 1843-'44. Washington, DC: 1845. https://www.biodiversitylibrary.org/item/101327 {TAS-pdf}
• Kuntze, Otto. 1891-1898. Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... Leipzig: A. Felix [etc.], 1891-1898. https://www.biodiversitylibrary.org/bibliography/327
• Nuttall, Thomas. 1813. A Catalogue of New and Interesting Plants, Collected in Upper Louisiana, and principally on the River Missouri, North America. Fraser's Nursery Catalogue. reprinted in Pittonia. 2: 116-119. https://www.biodiversitylibrary.org/item/52475#page/121
• Porter, Thomas C., and John M. Coulter. 1874. Synopsis of the Flora of Colorado. Washington: Government Printing Office, March 20, 1874. https://www.biodiversitylibrary.org/item/101470
• Primack, Richard B., and Carina Terry. 2021. New social trails made during the pandemic increase fragmentation of an urban protected area. Biological Conservation. No. . https://doi.org/10.1016/j.biocon.2021.108993
• Rydberg, Per Axel. 1900b. Studies on the Rocky Mountain Flora. — I. Bulletin of Torrey Botanical Club. 27(4):169-189. https://www.biodiversitylibrary.org/item/8005
• Sovell, John R., and Susan S. Panjabi. 2021. Biological Survey of Golden Open Space Property, Jefferson County, Colorado. Fort Collins, CO: Colorado Natural Heritage Program, Colorado State University, 2021. https://cnhp.colostate.edu/download/documents/2021/CNHP-Golden-Open-Space-Survey-final-report.pdf
• Torrey, John, and Asa Gray. 1838-1843. A flora of North America :containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico, arranged according to the natural system. 1-2. https://www.biodiversitylibrary.org/bibliography/9466

Area Plant Lists that contain this location:

• Area Plant List for Golden.
• Area Plant List for Schweich Hill.

Species collected at or near this location.

This list summarizes plants collected or observed at this specific, named location. It does not include plants collected or observed at nearby named or unnamed locations. It may be more instructive to use the Area Lists that contain this location.

• TAS – The plant was collected by Tom Schweich.
• Oth – The plant was collected by someone, but not Tom.
• Obs – The plant was observed, but not collected.

Bryophyta

Bryophyte. (TAS)

Cupressaceae

Juniperus virginiana L. Eastern Redcedar (TAS)

Anacardiaceae

Rhus trilobata Nutt. trilobata. Skunkbush Sumac (Obs)

Apiaceae

Lomatium orientale J.M. Coult. & Rose. Salt-and-Pepper (TAS+Obs)

Asclepiadaceae

Asclepias speciosa Torr. Showy Milkweed (Obs)

Asteraceae

Ambrosia psilostachya DC. Western Ragweed (TAS)

Artemisia campestris L. Field Sagewort (Obs)

Artemisia dracunculus L. Tarragon, Dragon Wort (TAS)

Artemisia frigida Willd. Prairie Sagewort (Obs)

Artemisia ludoviciana Nutt. Silver Wormwood (TAS+Obs)

Artemisia ludoviciana Nutt. ludoviciana. White Sagebrush (TAS)

Brickellia eupatorioides (L.) Shinners. False Boneset (TAS+Obs)

Carduus nutans L. Nodding Plumeless Thistle (TAS+Obs)

Centaurea diffusa Lam. Diffuse Knapweed (Obs)

Cirsium arvense (L.) Scop. Canada Thistle (TAS)

Cirsium undulatum (Nutt.) Spreng. Wavy Leaved Thistle (Obs)

Crepis occidentalis Nutt. Largeflower Hawksbeard (Obs)

Erigeron divergens Torr. & A. Gray. Spreading Fleabane (TAS)

Ericameria nauseosa (Pall. ex Pursh) G.L.Nesom & G.I.Baird graveolens (Nutt.) Reveal & Schuyler. Goldy-Locks (TAS+Obs)

Erigeron tracyi Greene. Running Fleabane (TAS)

Gaillardia aristata Pursh. Blanketflower (TAS)

Gutierrezia sarothrae (Pursh) Britton & Rusby. Broom Snakeweed (TAS+Obs)

Helianthus pumilus Nutt. Little Sunflower (TAS+Obs)

Heterotheca villosa (Pursh) Shinners. Hairy False Goldenaster (TAS+Obs)

Hymenopappus filifolius Hook. polycephalus (Osterh.) B.L. Turner. Many-Headed Fine-Leaved Wooly-White (TAS)

Lactuca serriola L. Prickly Lettuce (TAS+Obs)

Liatris punctata Hook. Dotted Blazing Star (TAS+Obs)

Nothocalais cuspidata (Pursh) Greene. Prairie False Dandelion (Obs)

Packera fendleri (A. Gray) W.A. Weber & Á. Löve. Fendler’s Ragwort (TAS+Obs)

Packera tridenticulata (Rydb.) W.A. Weber & Á. Löve. Three-Tooth Ragwort (TAS)

Ratibida columnifera (Nutt.) Woot. & Standl. Upright Prairie Coneflower (TAS)

Senecio integerrimus Nutt. Columbia Ragwort (TAS)

Senecio spartioides Torr. & A. Gray. Broomlike Ragwort (TAS)

Scorzonera laciniata L. Cutleaf Vipergrass (TAS+Obs)

Solidago missouriensis Nutt. Missouri Goldenrod (TAS)

Solidago nana Nutt. Baby Goldenrod (TAS)

Symphyotrichum ericoides (Linnaeus) G. L. Nesom. White Heath Aster (Obs)

Symphyotrichum falcatum (Lindl.) G.L. Nesom. White Prairie Aster (TAS)

Symphyotrichum porteri (A. Gray) G.L. Nesom. Smooth White Aster (TAS)

Taraxacum officinale F. H. Wigg. Common Dandelion (TAS+Obs)

Thelesperma megapotamicum (Spreng.) Kuntze. Hopi Tea Greenthread (TAS)

Tragopogon dubius Scop. Yellow Salsify (TAS)

Xanthisma spinulosum (Pursh) D. R. Morgan & R. L. Hartm. Spiny Goldenweed (TAS)

Boraginaceae

Cryptantha virgata (Porter) Payson. Miner"s Candle (Obs)

Lithospermum incisum Lehm. Narrowleaf Stoneseed (TAS+Obs)

Mertensia lanceolata (Pursh) DC. Prairie Bluebells (TAS)

Brassicaceae

Alyssum simplex Rudolphi. European Madwort (TAS+Obs)

Camelina microcarpa Andrz. ex DC. Little-Podded False Flax (Obs)

Chorispora tenella (Pall.) DC. Crossflower (TAS+Obs)

Physaria montana (A. Gray) Greene. Mountain Bladderpod (TAS)

Sisymbrium altissimum L. Tall Tumblemustard (TAS)

Thlaspi arvense L. Field Penny Cress (TAS)

Cactaceae

Echinocereus viridiflorus Engelm. Nylon Hedgehog Cactus (Obs)

Escobaria missouriensis (Sweet) D.R.Hunt. Missouri Foxtail Cactus (Obs)

Escobaria vivipara (Nutt.) Buxb. Beehive Cactus (Obs)

Opuntia macrorhiza Engelm. Western Pricklypear (TAS+Obs)

Opuntia polyacantha Haw. Plains Pricklypear (Obs)

Campanulaceae

Campanula glomerata L. Dane's Blood (TAS)

Cannabaceae

Celtis reticulata Torr. Net-Leaved Hackberry (TAS+Obs)

Caprifoliaceae

Lonicera tatarica L. Tatarian Honeysuckle (TAS)

Caryophyllaceae

Cerastium arvense L. strictum Gaudin. Field Chickweed (Obs)

Gypsophila paniculata L. Baby's Breath (TAS)

Saponaria officinalis L. Bouncingbet (Obs)

Stellaria media (L.) Vill. Common Chickweed (Obs)

Chenopodiaceae

Chenopodium album L. Lambsquarters (TAS)

Convolvulaceae

Convolvulus arvensis L. Field Bindweed (TAS)

Evolvulus nuttallianus Roem. & Schult. Shaggy Dwarf Morning Glory (TAS)

Elaeagnaceae

Elaeagnus angustifolia L. Russian Olive (TAS+Obs)

Euphorbiaceae

Euphorbia marginata Pursh. Snow on the Mountain (Obs)

Euphorbia myrsinites L. Myrtle Spurge (TAS+Obs)

Fabaceae

Astragalus. Milkvetch (Obs)

Astragalus agrestis Douglas ex G. Don. Purple Milkvetch (TAS+Obs)

Astragalus crassicarpus Nutt. Groundplum Milkvetch (TAS+Obs)

Astragalus drummondii Dougl. ex Hook. Drummond's Milkvetch (TAS)

Astragalus flexuosus G. Don. Flexible Milkvetch (TAS)

Colutea arborescens L. Bladder Senna (TAS)

Medicago sativa L. Alfalfa (TAS)

Melilotus officinalis (L.) Lam. Yellow Sweet Clover (TAS)

Oxytropis lambertii Pursh. Purple Locoweed (TAS)

Pediomelum tenuiflorum (Pursh) A. N. Egan. Slimflower Scurfpea (TAS)

Geraniaceae

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

Grossulariaceae

Ribes cereum Douglas. Wax Currant (TAS)

Lamiaceae

Lamium amplexicaule L. Henbit (TAS)

Marrubium vulgare L. Horehound (Obs)

Scutellaria brittonii Porter. Britton's Skullcap (Obs)

Linaceae

Linum lewisii Pursh. Prairie Blue Flax (Obs)

Loasaceae

Mentzelia nuda (Pursh) Torr. & A. Gray. Bractless Blazing Star (TAS)

Malvaceae

Malva neglecta Wallr. Common Mallow (TAS)

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

Nyctaginaceae

Mirabilis linearis (Pursh) Heimerl. Narrowleaf Four O'Clock (Obs)

Onagraceae

Oenothera coronopifolia Torr. & A. Gray. Crownleaf Evening Primrose. Hierba de San Juan. (Obs)

Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch. Linda Tarde (TAS)

Orobanchaceae

Castilleja integra A. Gray. Wholeleaf Indian Paintbrush (TAS)

Orobanche fasciculata Nutt. Clustered Broomrape (Obs)

Plantaginaceae

Linaria dalmatica (L.) Mill. Dalmatian ToadFlax (TAS+Obs)

Penstemon secundiflorus Benth. Sidebells Penstemon (TAS)

Penstemon virens Pennell ex Rydb. Front Range Beardtongue (TAS)

Polygonaceae

Eriogonum alatum Torrey in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers. 168, plate 8. 1853. Winged Buckwheat (Obs)

Eriogonum arcuatum Greene, Pittonia. 4: 319. 1901. Baker's Buckwheat (TAS)

Eriogonum effusum Nuttall, Proc. Acad. Nat. Sci. Philadelphia. 4: 15. 1848. Spreading Buckwheat (TAS+Obs)

Rumex crispus L. Curley Dock (Obs)

Ranunculaceae

Delphinium carolinianum Walter virescens (Nutt.) R.E. Brooks. Plains Larkspur (TAS+Obs)

Rosaceae

Prunus pensylvanica L. f. Pin Cherry (TAS)

Prunus virginiana L. Chokecherry (TAS+Obs)

Rosa arkansana Porter. Prairie Rose (TAS)

Santalaceae

Comandra umbellata (L.) Nutt. pallida (A. DC.) Piehl. Pale Bastard Toadflax (TAS+Obs)

Scrophulariaceae

Verbascum thapsus L. Common Mullein (Obs)

Violaceae

Viola nuttallii Pursh. Nuttall's Violet (TAS+Obs)

Vitaceae

Parthenocissus vitacea (Knerr) Hitchcock. Woodbine, thicket creeper (TAS)

Agavaceae

Yucca glauca Nutt. Soapweed Yucca (Obs)

Anthericeae

Leucocrinum montanum Nutt. ex A. Gray. Star Lily (TAS+Obs)

Commelinaceae

Tradescantia occidentalis (Britton) Smyth. Prairie Spiderwort (TAS+Obs)

Cyperaceae

Carex inops L.H. Bailey heliophila (Mack.) Crins. Sun Sedge (TAS)

Iridaceae

Iris L. Horticultural Iris (Obs)

Liliaceae

Muscari botryoides (L.) Mill. Common Grape Hyacinth (TAS)

Narcissus L. Horticultural Daffodil (Obs)

Poaceae

. Grass Family (TAS)

Aegilops cylindrica Host. Jointed Goat Grass (TAS)

Agropyron cristatum (L.) Gaertn. Crested Wheat Grass (TAS+Obs)

Andropogon gerardii Vitman. Big Bluestem (Obs)

Aristida purpurea Nutt. longiseta (Steud.) Vasey. Purple Threeawn (Obs)

Bromus carinatus Hook. & Arn. California Brome (TAS)

Bromus inermis Leyss. Smooth Brome (TAS+Obs)

Bromus japonicus Thunb. Japanese Cheat Grass (TAS)

Bromus tectorum L. Cheat Grass (TAS+Obs)

Bouteloua dactyloides (Nutt.) J.T. Columbus. Buffalo Grass (TAS+Obs)

Bouteloua gracilis (Kunth) Lag. ex Griffiths. Blue Grama (TAS)

Dactylis glomerata L. Orchard Grass (Obs)

Elymus canadensis L. Canadian Wildrye (Obs)

Elymus elymoides (Raf.) Swezey. Squirreltail Grass (Obs)

Festuca idahoensis Elmer. Idaho Fescue (TAS)

Festuca saximontana Rydb. Rocky Mountain Fescue (TAS)

Hesperostipa comata (Trin. & Rupr.) Barkworth. Needle and Thread (TAS)

Koeleria macrantha (Ledeb.) Schult. Prairie Junegrass (Obs)

Nassella viridula (Trin.) Barkworth. Green Needlegrass (TAS)

Poa pratensis L. Kentucky Bluegrass (TAS)

Poa secunda J. Presl. Sandberg Bluegrass. (TAS)

Schizachyrium scoparium (Michx.) Nash. Little Bluestem (Obs)

Sporobolus cryptandrus (Torr.) A. Gray. Sand Drop-seed (TAS)

Thinopyrum intermedium (Host) Barkworth & D.R. Dewey. Intermediate Wheatgrass (TAS+Obs)

Triticum aestivum L. Wheat (TAS)

Vulpia octoflora (Walt.) Rydb. Six Weeks Fescue (TAS)

A, B, C, D, E, F, G, H, I, J, K, L, M,
N, O, P, Q, R, S, T, U, V, W, X, Y, Z

[Home Page] [Site Map]

Date and time this article was prepared:6:11:49 PM, 3/23/2025.