Query: G.N.I.S.

Elevation: 7441ft, 2268m.

Articles that refer to this location:

• Forest Road 211, Pike-San Isabel National Forest: at Twin Creek; 
• Field Notes: 18 Jun 2025;  Coll. No. 3401, 18 Jun 2025;  Coll. No. 3410, 18 June 2025;  near Twin Creek;  3 Sep 2025;  on Twin Creek;  26 Jun 2026; 

Area Plant Lists that contain this location:

• Area Plant List for Tarryall Mountains, East Slope.

Twin Creek enters Goose Creek.	Coll. No. 3410, Rosa arkansana.	Looking upstream.	Looking downstream toward Sheep Rock.	Twin Creek, above its confluence with North Twin Creek.
Foundations and water trough along Twin Creek.	Middle reaches of Twin Creek.

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.

Marchantiophyta

Marchantiophyta. Liverwort (Obs) CC:?

Equisetaceae

Equisetum hyemale L. affine (Engelm.) Calder & Roy L.Taylor. Tall Scouring Rush (Obs) CC:4

Apiaceae

Selineae

Aletes anisatus (A. Gray) W. L. Theob. & C. C. Tseng. Anise Indian Parsley (Obs) CC:6

Cymopterus lemmonii (J. M. Coult. & Rose) Dorn. Alpine False Springparsley (TAS) CC:6

Asteraceae

. Composite (Obs) CC:?

Anthemideae

Artemisiinae

Artemisia frigida Willd. Prairie Sagewort (TAS+Obs) CC:4

Artemisia ludoviciana Nutt. incompta (Nutt.) D. D. Keck. White Sagebrush (TAS) CC:3

Astereae

Conyzinae

Erigeron flagellaris A. Gray. Trailing Fleabane (TAS) CC:3

Gutiereziinae

Gutierrezia sarothrae (Pursh) Britton & Rusby. Broom Snakeweed (Obs) CC:3

Pentachaetinae

Ericameria parryi (A. Gray) G. I. Nesom & G. I. Baird affinis (A. Nelson) G. L. Nesom & G. I. Baird. Parry's Rabbitbrush (TAS+Obs) CC:3

Symphyotrichinae

Symphyotrichum foliaceum (DC.) G. L. Nesom parryi (D. C. Eaton) G. L. Nesom. Parry's Aster (TAS) CC:5

Symphyotrichum porteri (A. Gray) G.L. Nesom. Smooth White Aster (TAS) CC:6

Cardueae

Carduinae

Cirsium vulgare (Savi) Ten. Bull Thistle (Obs) CC:0

Cichorieae

Hieraciinae

Hieracium fendleri Sch.-Bip. Fendler's Hawkweed (Obs) CC:5

Helenieae

Gaillardiinae

Gaillardia aristata Pursh. Blanketflower (Obs) CC:4

Heliantheae

Rudbeckiinae

Rudbeckia hirta L. pulcherrima Farw. Black-Eyed Susan (Obs) CC:6

Senecioneae

Packera fendleri (A. Gray) W.A. Weber & Á. Löve. Fendler’s Ragwort (TAS) CC:4

Senecio spartioides Torr. & A. Gray. Broomlike Ragwort (Obs) CC:5

Betulaceae

Alnus incana (L.) Moench tenuifolia (Nutt.) Brietung. Thinleaf Alder (TAS) CC:6

Boraginaceae

Oreocarya virgata (Porter) Greene. Miner"s Candle (Obs) CC:5

Phacelia hastata Douglas ex Lehm. Silverleaf Phacelia (Obs) CC:5

Brassicaceae

Erysimum capitatum (Hook.) Greene. Sanddune Wallflower (Obs) CC:5

Cannabaceae

Humulus neomexicanus (A. Nelson & Cockerell) Rydb. New Mexican Hops (TAS) CC:5

Caryophyllaceae

Eremogone fendleri (A. Gray) Ikonnikov. Fendler's Sandwort (Obs) CC:6

Stellaria longipes Goldie. Longstalk Starwort (Obs) CC:8

Chenopodiaceae

Chenopodium leptophyllum (Moq.) Nutt. ex S. Watson. Narrowleaf Goosefoot (TAS) CC:5

Cornaceae

Cornus sericea L. sericea. Creek Dogwood (TAS) CC:7

Euphorbiaceae

Euphorbia serpillifolia Pers. Thymeleaf Sandmat (TAS) CC:2

Euphorbia virgata Engelm. Leafy Spurge (Obs) CC:0

Fabaceae

Oxytropis multiceps Nuttall, Fl. N. Amer. (Torr. & A. Gray) 1(2): 341 (1838). Southwestern Locoweed (Obs) CC:8

Geraniaceae

Geranium richardsonii Fisch. & Trautv. Richardson's Geranium (TAS) CC:6

Grossulariaceae

Ribes cereum Douglas. Wax Currant (Obs) CC:6

Ribes inerme Rydb. White Stem Gooseberry (Obs) CC:5

Hydrangeaceae

Jamesia americana Torr. & A. Gray americana. Fivepetal Cliffbush (Obs) CC:7

Lamiaceae

Agastache urticifolia (Benth.) Kuntze. Nettle-Leaved Horse-Mint (Obs) CC:5

Onagraceae

Chamerion angustifolium (L.) Holub. Fireweed (TAS+Obs) CC:4

Circaea alpina L. Small Enchanter's Nightshade (Obs) CC:8

Oxalidaceae

Oxalis stricta L. Common Yellow Oxalis (Obs) CC:1

Plantaginaceae

Linaria vulgaris Mill. Butter and Eggs (TAS) CC:0

Veronica. Speedwell (TAS) CC:?

Veronica americana (Raf.) Benth. American Speedwell (TAS) CC:6

Polemoniaceae

Aliciella pinnatifida (Nutt. ex A.Gray) J.M.Porter. Sticky Gilia (Obs) CC:5

Polygonaceae

Eriogonum alatum Torrey in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers. 168, plate 8. 1853. Winged Buckwheat (Obs) CC:5

Primulaceae

Primula pauciflora (Greene) Mast & Reveal. Beautiful Shootingstar (Obs) CC:?

Ranunculaceae

Anemonastrum canadense (L.) Mosyakin. Candian Anemone (TAS) CC:8

Thalictrum fendleri Engelm. ex A. Gray. Fendler's Meadow Rue (Obs) CC:6

Rhamnaceae

Ceanothus fendleri A. Gray. Fendler's Ceanothus (Obs) CC:7

Rosaceae

Amygdaloideae

Amygdaleae

Prunus virginiana L. Chokecherry (Obs) CC:4

Neillieae

Physocarpus monogynus (Torr.) J.M. Coult. Mountain Ninebark (Obs) CC:7

Spiraeeae

Holodiscus discolor (Pursh) Maxim. microphyllus (Rydb.) Jeps. Ocean Spray (Obs) CC:8

Dryadoideae

Dryadeae

Cercocarpus montanus Raf. Alder-Leaf Mountain Mahogany (Obs) CC:6

Rosoideae

Colurieae

Geum macrophyllum Willd. perincisum (Rydb.) Raup. Large-leaf Avens (TAS) CC:6

Potentilleae

Drymocallis fissa (Nutt.) Rydb. (Obs) CC:5

Potentilla hippiana Lehm. hippiana. Wooly Cinquefoil (Obs) CC:5

Roseae

Rosa arkansana Porter. Prairie Rose (TAS) CC:5

Rubeae

Rubus idaeus L. strigosus (Michx.) Maxim. American Red Raspberry (Obs) CC:5

Rubiaceae

Galium boreale L. Bedstraw (TAS) CC:6

Galium triflorum Michx. Fragrant Bedstraw (TAS) CC:7

Sapindaceae

Acer glabrum Torr. glabrum. Rocky Mountain Maple (Obs) CC:7

Saxifragaceae

Heuchera hallii A. Gray. Front Range Alumroot (Obs) CC:7

Urticaceae

Urtica. (Obs) CC:3

Cyperaceae

Carex inops L. H. Bailey heliophila (Mack.) Crins. Sun Sedge (TAS) CC:7

Carex occidentalis L. H. Bailey. Western Sedge (TAS) CC:7

Iridaceae

Sisyrinchium montanum Greene. Rocky Mountain Blue-Eyed Grass (Obs) CC:6

Juncaceae

Juncus L. Rush (TAS) CC:?

Juncus ensifolius Wikstr. Sword-Leaf Rush (Obs) CC:6

Poaceae

Aveneae

Phleum pratense L. Timothy (Obs) CC:0

Bromeae

Bromus japonicus Thunb. Japanese Cheat Grass (Obs) CC:0

Eragrostideae

Muhlenbergia wrightii Vasey ex J.M. Coult. Spike Muhly (TAS) CC:7

Stipeae

Eriocoma robusta (Vasey) Romasch. Sleepygrass (TAS) CC:5

Hesperostipa comata (Trin. & Rupr.) Barkworth. Needle and Thread (TAS) CC:6

Triticeae

Pseudoroegneria spicata (Pursh) A. Löve. Bluebunch Wheat Grass (Obs) CC:7

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Date and time this article was prepared:3:15:38 PM, 8/1/2026.