Query:

See also: Triceratops Trail.

Latitude: 39.74156 Longitude: -105.21857 (° decimal)

Articles that refer to this location:

• 6th Avenue Trail, Golden, Jefferson County, Colorado: 31500; 
• Checklist Flora of Native and Naturalized Vascular Plants of Golden and Vicinity, Jefferson County, Colorado: Parfet Prehistoric Preserve; 
• Field Notes: 30 Apr 2025;  12 May 2025; 

Area Plant Lists that contain this location:

• Area Plant List for Golden.

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.

Apiaceae

Selineae

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

Smyrnieae

Conium maculatum L. Common Poison Hemlock (Obs)

Asteraceae

Anthemideae

Artemisiinae

Artemisia dracunculus L. Tarragon, Dragonwort (Obs)

Artemisia frigida Willd. Prairie Sagewort (Obs)

Artemisia ludoviciana Nutt. Silver Wormwood (Obs)

Astereae

Chrysopsidinae

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

Conyzinae

Erigeron. Fleabane (Obs)

Erigeron tracyi Greene. Running Fleabane (Obs)

Gutiereziinae

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

Machaerantherinae

Grindelia squarrosa (Pursh) Dunal. Curlycup Gumweed (Obs)

Cardueae

Carduinae

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

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

Centaureinae

Centaurea. Knapweed NOIBN (Obs)

Onopordinae

Onopordum acanthium L. Scotch Cottonthistle (Obs)

Cichorieae

Crepidinae

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

Microseridinae

Agoseris parviflora (Nutt.) D. Dietr. Steppe Goat-Chicory (TAS)

Scorzonerinae

Scorzonera laciniata L. Cutleaf Vipergrass (Obs)

Tragopogon dubius Scop. Yellow Salsify (Obs)

Heliantheae

Helianthinae

Helianthus pumilus Nutt. Little Sunflower (Obs)

Senecioneae

Senecio integerrimus Nutt. Columbia Ragwort (Obs)

Boraginaceae

Cynoglossum officinale L. Gypsyflower (Obs)

Ellisia nyctelea (L.) L. Aunt Lucy (Obs)

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

Brassicaceae

Alyssum simplex Rudolphi. European Madwort (Obs)

Berteroa incana (L.) DC. Hoary Alyssum (Obs)

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

Lepidium draba L. White Top, Hoary Cress (Obs)

Cactaceae

Opuntia macrorhiza Engelm. Western Pricklypear (Obs)

Caprifoliaceae

Symphoricarpos rotundifolius A. Gray. Roundleaf Snowberry (Obs)

Chenopodiaceae

Atriplex canescens (Pursh) Nutt. Four-wing Saltbush (Obs)

Chenopodium album L. Lambsquarters (Obs)

Convolvulaceae

Convolvulus arvensis L. Field Bindweed (Obs)

Elaeagnaceae

Elaeagnus angustifolia L. Russian Olive (Obs)

Euphorbiaceae

Euphorbia myrsinites L. Myrtle Spurge (Obs)

Fabaceae

Medicago sativa L. Alfalfa (Obs)

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

Geraniaceae

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

Lamiaceae

Marrubium vulgare L. Horehound (Obs)

Nepeta cataria L. Catnip (Obs)

Linaceae

Linum perenne L. Blue Flax (Obs)

Malvaceae

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

Oleaceae

Fraxinus pennsylvanica Marshall. Green Ash (Obs)

Onagraceae

Oenothera howardii (A. Nels.) W. L. Wagner. Howard's Evening Primrose (Obs)

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

Plantaginaceae

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

Penstemon Schmidel. Beard Tongue (Obs)

Penstemon secundiflorus Benth. Sidebells Penstemon (Obs)

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

Polygonaceae

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

Rumex crispus L. Curley Dock (Obs)

Ranunculaceae

Clematis L. Clematis (Obs)

Rosaceae

Prunus americana Marshall. American Plum (Obs)

Prunus virginiana L. Chokecherry (Obs)

Rosa arkansana Porter. Prairie Rose (Obs)

Sapindaceae

Acer negundo L. Box Elder Maple (Obs)

Ulmaceae

Ulmus pumila L. Siberian Elm (Obs)

Violaceae

Viola nuttallii Pursh. Nuttall's Violet (Obs)

Agavaceae

Yucca glauca Nutt. Soapweed Yucca (Obs)

Anthericeae

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

Poaceae

Andropogoneae

Andropogon gerardii Vitman. Big Bluestem (Obs)

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

Bromeae

Bromus tectorum L. Cheat Grass (Obs)

Cynodonteae

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

Poeae

Festuca ovina L. Complex, hybrid or selection (Obs)

Poa bulbosa L. Bulbous Bluegrass (Obs)

Stipeae

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

Triticeae

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

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N, O, P, Q, R, S, T, U, V, W, X, Y, Z

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Date and time this article was prepared:2:57:36 PM, 1/9/2026.