Plant Check List for DeLong Park (City of Golden), Jefferson County, United States.
Edited by Tom Schweich
This list is assembled from personal collections, herbarium vouchers, and published lists. For California, much of the data is provided by the participants of the Consortium of California Herbaria (http://ucjeps.berkeley.edu/consortium/). For Colorado, much of the data is provided by the Southwest Environmental Information Network, which web site is found at (http://swbiodiversity.org). See their respective websites for copyright information and recommended citation formats.
For a complete list of Locations included in this Area List, see the Locations Included section, below.
This page is highly summarized. For detail about the distribution of plants, please see: Detailed Area List for DeLong Park (City of Golden), Jefferson County, United States.
2. [ ] Juniperus scopulorum Sarg. 'Cologreen'. Cologreen Rocky Mountain Juniper. DeLongH
4. [ ] Pinus aristata Engelm. Bristlecone Pine. DeLongH
5. [ ] Pinus heldreichii H. Christ var. leucodermis. Bosnian Pine. DeLongH
7. Tribe: Smyrnieae
8. [ ] Conium maculatum L. Common Poison Hemlock. Weed: CO DofA, List: C.
10. Tribe: Anthemideae
11. [ ] Achillea millefolium L. (Syn: A. lanulosa Nutt. , A. m. L. var. alpicola (Rydb.) Garrett , A. m. L. var. lanulosa (Nutt.) Piper , A. m. L. var. occidentalis DC. ) Common Yarrow. DeLongH
12. Tribe: Astereae
13. SubTribe: Chrysopsidinae
14. [ ] Heterotheca villosa (Pursh) Shinners. (Syn: H. v. (Pursh) Shinners var. nana (A. Gray) Semple , H. v. (Pursh) Shinners var. villosa ) Hairy False Goldenaster. Native, likely adventive.
15. SubTribe: Conyzinae
16. [ ] Conyza canadensis (L.) Cronquist. (Syn: Erigeron canadensis (L.) Cronquist ) Canadian Horseweed. Weed
17. SubTribe: Machaerantherinae
18. [ ] Grindelia subalpina Greene. Subalpine Gumweed.
19. SubTribe: Pentachaetinae
20. [ ] Ericameria nauseosa (Pall. ex Pursh) G.L.Nesom & G.I.Baird var. graveolens (Nutt.) Reveal & Schuyler. (Syn: E. n. (Pall. ex Pursh) G.L.Nesom & G.I.Baird var. glabrata (Gray) G.L. Nesom & Baird ) Goldy-Locks. Thin.
21. [ ] Ericameria nauseosa (Pall. ex Pursh) G. I. Nesom & G. I. Baird var. nauseosa. (Syn: Chrysothamnus plattensis Greene ) Rubber Rabbitbush.
22. Tribe: Calenduleae
23. [ ] Osteospermum 'Analanche'. Avalanche White Dwarf Sun Daisy. DeLongH
24. Tribe: Cardueae
25. SubTribe: Carduinae
26. [ ] Cirsium arvense (L.) Scop. (Syn: Breea arvensis (L.) Lessing ) Canada Thistle. Weed: CO DofA, List: B.
27. SubTribe: Onopordinae
28. [ ] Onopordum acanthium L. Scotch Cottonthistle. Weed: CO DofA, List: B.
29. Tribe: Cichorieae
30. SubTribe: Crepidinae
31. [ ] Taraxacum officinale F. H. Wigg. (Syn: T. laevigatum (Willd.) DC. ) Common Dandelion. Weed
32. SubTribe: Hyoseridinae
33. [ ] Sonchus arvensis L. Field Sowthistle. Weed: CO DofA, List: C.
34. SubTribe: Lactucinae
35. [ ] Lactuca serriola L. Prickly Lettuce. Weed
36. Tribe: Coreopsideae
37. [ ] Coreopsis auriculata 'Zampfir'. Fluted Coreopsis. DeLongH
38. Tribe: Cynareae
39. [ ] Arctium minus Bernh. Lesser Burdock. Weed: CO DofA, List: C.
40. Tribe: Helenieae
41. SubTribe: Gaillardiinae
42. [ ] Gaillardia aristata Pursh. Blanketflower. DeLongH
43. Tribe: Heliantheae
44. SubTribe: Ambrosiinae
45. [ ] Ambrosia acanthicarpa Hook. Flat-Spine Burr-Ragweed. Weed
46. [ ] Ambrosia psilostachya DC. Western Ragweed. Thin.
47. SubTribe: Helianthinae
48. [ ] Helianthus pumilus Nutt. Little Sunflower.
49. SubTribe: Rudbeckiinae
50. [ ] Ratibida columnifera (Nutt.) Woot. & Standl. (Syn: Rudbeckia columnifera Nutt. ) Upright Prairie Coneflower. DeLongH
52. [ ] Catalpa speciosa Teas. Western Catalpa. DeLongH
54. [ ] Ellisia nyctelea (L.) L. Aunt Lucy. Adventive native annual. Weed only if it becomes dominant.
56. [ ] Capsella bursa-pastoris (L.) Medik. Shepherd's Purse. Weed
57. [ ] Chorispora tenella (Pall.) DC. Crossflower. Weed
58. [ ] Descurainia incisa (Engelm.) Britton ssp. incisa. (Syn: D. incisa (Engelm.) Britton ssp. viscosa Rydb.) G. Mulligan ) Mountain Tansymustard.
59. [ ] Hesperis matronalis L. Dame's Rocket. Weed: CO DofA, List: B.
60. [ ] Lepidium draba L. (Syn: Cardaria draba (L.) Desv. ) White Top, Hoary Cress. Weed: CO DofA, List: B.
62. [ ] Opuntia macrorhiza Engelm. Western Pricklypear.
64. [ ] Campanula rapunculoides L. Rampion Bellflower.
66. [ ] Celtis occidentalis L. Western Hackberry. DeLongH
68. [ ] Knautia macedonica Griesb. Macedonian scabious. Watch.
69. [ ] Lonicera tatarica L. Tatarian Honeysuckle.
70. [ ] Viburnum dentatum L. Arrowwood Viburnum. DeLongH
72. [ ] Scabiosa columbaria 'Butterfly Blue'. Blue Pincushion Flower. DeLongH
74. [ ] Chenopodium album L. Lambsquarters. Weed
75. [ ] Cycloloma atriplicifolium (Spreng.) J. M. Coult. Winged-Pigweed. Native, but alien to Jefferson County, Weed
76. [ ] Kochia scoparia (L.) Schrad. (Syn: Bassia scoparia (L.) A. J. Scott , Bassia sieversiana (Pall.) W. A. Weber ) Common Red Sage. Weed
77. [ ] Salsola tragus L. (Syn: S. australis R. Brown , S. iberica (Sennen & Pau) Botschantzev ex Czerepanov , S. kali , S. kali var. tenuifolia Tausch. , S. pestifer Nels. ) Tumbleweed. Weed
79. [ ] Cleomella serrulata (Pursh) Roalson & J. C. Hall. (Syn: Cleome serrulata Pursh , Peritoma serrulata (Pursh) DC. ) Rocky Mountain Bee Plant. DeLongH
81. [ ] Convolvulus arvensis L. Field Bindweed. Weed: CO DofA, List: C.
83. [ ] Euphorbia esula L. Leafy Spurge. Weed: CO DofA, List: B.
84. [ ] Euphorbia myrsinites L. (Syn: Tithymalus myrsinites (L.) Hill ) Myrtle Spurge. Toxic! Weed: CO DofA, List: A.
86. [ ] Gleditsia triacanthos L. var. inermis C. K. Schneid. 'Imperial'. Imperial Honeylocust. DeLongH
87. [ ] Lathyrus latifolius L. Perennial Pea Vine. Weed Weed: CO DofA, List: Watch.
88. [ ] Melilotus officinalis (L.) Lam. Yellow Sweet Clover.
89. [ ] Securigera varia (L.) Lassen. (Syn: Coronilla varia L. ) Purple Crownvetch. Weed
90. [ ] Trifolium repens L. White Clover.
92. [ ] Quercus bicolor Willd. Swamp White Oak. DeLongH
93. [ ] Quercus macrocarpa Michx. Bur Oak. DeLongH
95. [ ] Erodium cicutarium (L.) L'Her. ex Aiton. Hemlock-leav'd Crane's-bill. Weed: CO DofA, List: C.
97. [ ] Ribes cereum Douglas. Wax Currant.
99. [ ] Caryopteris × clandonensis 'Blue Mist'. Blue Mist Spirea. DeLongH
100. [ ] Lamium amplexicaule L. Henbit. Weed
101. [ ] Nepeta racemosa Lam. Persian Catmint. Weed.
102. [ ] Salvia × sylvestris 'May Night'. May Night Purple Salvia. DeLongH
104. [ ] Linum L.. Flax. DeLongH
106. [ ] Malva neglecta Wallr. Common Mallow.
108. [ ] Fraxinus pennsylvanica Marshall. Green Ash.
109. [ ] Syringa vulgaris L. Common Purple Lilac. DeLongH
111. [ ] Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch. (Syn: Gaura coccinea Pursh , Gaura glabra Lehm. ) Linda Tarde.
113. [ ] Eschscholzia californica Cham. California Poppy. Weed ? Not weeding at this time.
115. [ ] Linaria dalmatica (L.) Mill. (Syn: Linaria dalmatica (L.) Mill. ssp. dalmatica , Linaria genistifolia (L.) Mill. ssp. dalmatica (L.) Maire & Petitm. ) Dalmatian ToadFlax. Weed: CO DofA, List: B.
116. [ ] Penstemon pinifolius Greene. Pine-Needle Beardtongue. DeLongH
117. [ ] Plantago lanceolata L. Narrowleaf Plantain.
119. [ ] Polygonum aviculare L. Prostrate Knotweed. Weed
120. [ ] Rumex crispus L. Curley Dock. Weed
122. [ ] Ranunculus testiculatus Crantz. (Syn: Ceratocephala orthoceras DC. ) Bur Buttercup. Weed
124. [ ] Dasiphora fruticosa (L.) Rydb. 'Gold Drop'. Gold Drop Potentilla. DeLongH
125. [ ] Fallugia paradoxa (D. Don) Endl. Apache Plume. DeLongH
126. [ ] Rosa 'Knock Out'. Knock Out Rose. DeLongH
128. [ ] Galium aparine L. (Syn: Galium aparine L. var. echinospermum (Wallr.) Farw. , Galium spurium L. ) Sticky Willy, Cleavers. Weed
130. [ ] Comandra umbellata (L.) Nutt. ssp. pallida (A. DC.) Piehl. (Syn: Comandra umbellata (L.) Nutt. var. pallida (A. DC.) M. E. Jones ) Pale Bastard Toadflax.
132. [ ] Acer miyabei Maxim. 'Morton'. State Street Maple. DeLongH
133. [ ] Acer saccharum L. 'JFS-Caddo'. Caddo Sugar Maple. DeLongH
135. [ ] Heuchera villosa × americana 'Berry Smoothie'. Coral Bells 'Berry Smoothie'. DeLongH
137. [ ] Scrophularia lanceolata Pursh. Lanceleaf Figwort.
139. [ ] Solanum elaeagnifolium Cav. Silverleaf Nightshade.
140. [ ] Solanum rostratum Dunal. Buffalo Bur Nightshade. Native, but very prickly, Weed
141. [ ] Solanum triflorum Nutt. Cutleaf Nightshade. Native, but very weedy. Weed.
143. [ ] Ulmus pumila L. Siberian Elm. Weed, 1000s of seedlings. Weed: CO DofA, List: C.
145. [ ] Verbena bracteata Lag. & Rodr. Large Bract Vervain. Weed
147. [ ] Tribulus terrestris L. Puncture Vine. Weed: CO DofA, List: C.
149. [ ] Hesperaloe parviflora (Torr.) Coult. Red False Yucca. DeLongH
151. [ ] Kniphofia uvaria (L.) Oken 'Flamenco'. Torch Lily. DeLongH
153. [ ] Carex inops L.H. Bailey ssp. heliophila (Mack.) Crins. (Syn: C. pensylvanica Lam. ssp. heliophila (Mack.) W. A. Weber ) Sun Sedge.
155. Tribe: Andropogoneae
156. [ ] Andropogon gerardii Vitman. Big Bluestem.
157. [ ] Bothriochloa bladhii (Retz.) S.T. Blake. Australian bluestem, Caucasian Bluestem.
158. Tribe: Bromeae
159. [ ] Bromus japonicus Thunb. Japanese Cheat Grass.
160. [ ] Bromus tectorum L. (Syn: B. tectorum L. var. glabratus Spenn. ) Cheat Grass. Weed: CO DofA, List: C.
161. Tribe: Cynodonteae
162. [ ] Bouteloua dactyloides (Nutt.) J.T. Columbus. (Syn: Buchloe dactyloides (Nutt.) Engelm. ) Buffalo Grass. DeLongH
163. [ ] Bouteloua gracilis (Kunth) Lag. ex Griffiths. (Syn: Chondrosum gracile Kunth ) Blue Grama. DeLongH
164. [ ] Distichlis spicata (L.) E. Greene. (=Distichlis stricta (Torrey) Rydberg) Saltgrass. DeLongH
165. Tribe: Eragrostideae
166. [ ] Eragrostis cilianensis (All.) Vignolo ex Janch. Stinkgrass. Weed
167. [ ] Sporobolus heterolepis (A. Gray) A. Gray. Prairie Drop-seed. DeLongH
168. Tribe: Paniceae
169. [ ] Echinochloa crus-galli (L.) P. Beauv. Barnyardgrass. Non-native grass, Weed.
170. [ ] Panicum miliaceum L. Proso Millet. Weed: CO DofA, List: C.
171. [ ] Pennisetum alopecuroides (L.) Spreng. 'Hameln'. Dwarf Fountain Grass. DeLongH
172. [ ] Setaria viridis (L.) P. Beauv. Green Bristlegrass. Weed
173. SubTribe: Cenchrinae
174. [ ] Cenchrus longispinus (Hack.) Fern. Longspine Sandbur. Native, but very prickly, Weed
175. Tribe: Poeae
176. [ ] Dactylis glomerata L. Orchard Grass. Non-native grass, Weed.
177. [ ] Lolium multiflorum Lam. (Syn: L. perenne L. ssp. multiflorum (Lam.) Husn. ) Annual Ryegrass.
178. [ ] Poa annua L. Annual Blue Grass. Weed
179. [ ] Poa bulbosa L. Bulbous Bluegrass. Weed: CO DofA, List: C.
180. Tribe: Stipeae
181. [ ] Eriocoma hymenoides (Roem. & Schult.) Rydb. (Syn: Achnatherum hymenoides (Roem. & Schult.) Barkworth , Oryzopsis hymenoides (Roem. & Schult.) Ricker , Stipa hymenoides Roem. & Schult. ) Indian Rice Grass. DeLongH
182. [ ] Hesperostipa comata (Trin. & Rupr.) Barkworth. (Syn: Stipa comata Trin. & Rupr. ) Needle and Thread.
183. [ ] Nassella viridula (Trin.) Barkworth. (Syn: Stipa viridula Trin. ) Green Needlegrass.
184. Tribe: Triticeae
185. [ ] Agropyron cristatum (L.) Gaertn. Crested Wheat Grass.
186. [ ] Elymus canadensis L. Canadian Wildrye.
187. [ ] Pascopyrum smithii (Rydb.) Á. Löve. (Syn: Agropyron smithii Rydb. ) Western Wheatgrass. Native tall cool-season grass that can dominate, Thin. DeLongH
188. [ ] Secale cereale L. Cereal Rye.
189. [ ] Triticum aestivum L. Wheat.
| Total number of taxa: | 114 |
| Native Taxa: (serif, italic, bold) | 38 |
| Exotic Taxa: (sans-serif, italic) | 74 |
| Nativity Undetermined: (default font, italic) | 2 |
| Listed Weeds: Identified as Weed | 18 |
Locations Included in This Area
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Date and time this article was prepared: 11/8/2025 1:44:20 PM