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. [ ] Conium maculatum L. Common Poison Hemlock. Weed: CO DofA, List: C.
9. [ ] 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
10. [ ] Ambrosia acanthicarpa Hook. Flat-Spine Burr-Ragweed. Weed
11. [ ] Ambrosia psilostachya DC. Western Ragweed. Thin.
12. [ ] Arctium minus Bernh. Lesser Burdock. Weed: CO DofA, List: C.
13. [ ] Cirsium arvense (L.) Scop. (Syn: Breea arvensis (L.) Lessing ) Canada Thistle. Weed: CO DofA, List: B.
14. [ ] Conyza canadensis (L.) Cronquist. (Syn: Erigeron canadensis (L.) Cronquist ) Canadian Horseweed. Weed
15. [ ] Coreopsis auriculata 'Zampfir'. Fluted Coreopsis. DeLongH
16. [ ] 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.
17. [ ] Ericameria nauseosa (Pall. ex Pursh) G. I. Nesom & G. I. Baird var. nauseosa. (Syn: Chrysothamnus plattensis Greene ) Rubber Rabbitbush.
18. [ ] Gaillardia aristata Pursh. Blanketflower. DeLongH
19. [ ] Helianthus pumilus Nutt. Little Sunflower.
20. [ ] 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.
21. [ ] Lactuca serriola L. Prickly Lettuce. Weed
22. [ ] Onopordum acanthium L. Scotch Cottonthistle. Weed: CO DofA, List: B.
23. [ ] Osteospermum 'Analanche'. Avalanche White Dwarf Sun Daisy. DeLongH
24. [ ] Ratibida columnifera (Nutt.) Woot. & Standl. (Syn: Rudbeckia columnifera Nutt. ) Upright Prairie Coneflower. DeLongH
25. [ ] Sonchus arvensis L. Field Sowthistle. Weed: CO DofA, List: C.
26. [ ] Taraxacum officinale F. H. Wigg. (Syn: T. laevigatum (Willd.) DC. ) Common Dandelion. Weed
28. [ ] Catalpa speciosa Teas. Western Catalpa. DeLongH
30. [ ] Ellisia nyctelea (L.) L. Aunt Lucy. Adventive native annual. Weed only if it becomes dominant.
32. [ ] Capsella bursa-pastoris (L.) Medik. Shepherd's Purse. Weed
33. [ ] Chorispora tenella (Pall.) DC. Crossflower. Weed
34. [ ] Descurainia incisa (Engelm.) Britton ssp. incisa. (Syn: D. incisa (Engelm.) Britton ssp. viscosa Rydb.) G. Mulligan ) Mountain Tansymustard.
35. [ ] Hesperis matronalis L. Dame's Rocket. Weed: CO DofA, List: B.
36. [ ] Lepidium draba L. (Syn: Cardaria draba (L.) Desv. ) White Top, Hoary Cress. Weed: CO DofA, List: B.
38. [ ] Opuntia macrorhiza Engelm. Western Pricklypear.
40. [ ] Campanula rapunculoides L. Rampion Bellflower.
42. [ ] Celtis occidentalis L. Western Hackberry. DeLongH
44. [ ] Knautia macedonica Griesb. Macedonian scabious. Watch.
45. [ ] Lonicera tatarica L. Tatarian Honeysuckle.
46. [ ] Viburnum dentatum L. Arrowwood Viburnum. DeLongH
48. [ ] Scabiosa columbaria 'Butterfly Blue'. Blue Pincushion Flower. DeLongH
50. [ ] Chenopodium album L. Lambsquarters. Weed
51. [ ] Cycloloma atriplicifolium (Spreng.) J. M. Coult. Winged-Pigweed. Native, but alien to Jefferson County, Weed
52. [ ] Kochia scoparia (L.) Schrad. (Syn: Bassia scoparia (L.) A. J. Scott , Bassia sieversiana (Pall.) W. A. Weber ) Common Red Sage. Weed
53. [ ] 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
55. [ ] Cleomella serrulata (Pursh) Roalson & J. C. Hall. (Syn: Cleome serrulata Pursh , Peritoma serrulata (Pursh) DC. ) Rocky Mountain Bee Plant. DeLongH
57. [ ] Convolvulus arvensis L. Field Bindweed. Weed: CO DofA, List: C.
59. [ ] Euphorbia esula L. Leafy Spurge. Weed: CO DofA, List: B.
60. [ ] Euphorbia myrsinites L. (Syn: Tithymalus myrsinites (L.) Hill ) Myrtle Spurge. Toxic! Weed: CO DofA, List: A.
62. [ ] Gleditsia triacanthos L. var. inermis C. K. Schneid. 'Imperial'. Imperial Honeylocust. DeLongH
63. [ ] Lathyrus latifolius L. Perennial Pea Vine. Weed
64. [ ] Melilotus officinalis (L.) Lam. Yellow Sweet Clover.
65. [ ] Securigera varia (L.) Lassen. (Syn: Coronilla varia L. ) Purple Crownvetch. Weed
66. [ ] Trifolium repens L. White Clover.
68. [ ] Quercus bicolor Willd. Swamp White Oak. DeLongH
69. [ ] Quercus macrocarpa Michx. Bur Oak. DeLongH
71. [ ] Erodium cicutarium (L.) L'Her. ex Aiton. Hemlock-leav'd Crane's-bill. Weed: CO DofA, List: C.
73. [ ] Ribes cereum Douglas. Wax Currant.
75. [ ] Caryopteris × clandonensis 'Blue Mist'. Blue Mist Spirea. DeLongH
76. [ ] Lamium amplexicaule L. Henbit. Weed
77. [ ] Nepeta racemosa Lam. Persian Catmint. Weed.
78. [ ] Salvia × sylvestris 'May Night'. May Night Purple Salvia. DeLongH
80. [ ] Linum L.. Flax. DeLongH
82. [ ] Malva neglecta Wallr. Common Mallow.
84. [ ] Fraxinus pennsylvanica Marshall. Green Ash.
85. [ ] Syringa vulgaris L. Common Purple Lilac. DeLongH
87. [ ] Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch. (Syn: Gaura coccinea Pursh , Gaura glabra Lehm. ) Linda Tarde.
89. [ ] Eschscholzia californica Cham. California Poppy. Weed ? Not weeding at this time.
91. [ ] 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.
92. [ ] Penstemon pinifolius Greene. Pine-Needle Beardtongue. DeLongH
93. [ ] Plantago lanceolata L. Narrowleaf Plantain.
95. [ ] Polygonum aviculare L. Prostrate Knotweed. Weed
96. [ ] Rumex crispus L. Curley Dock. Weed
98. [ ] Ranunculus testiculatus Crantz. (Syn: Ceratocephala orthoceras DC. ) Bur Buttercup. Weed
100. [ ] Dasiphora fruticosa (L.) Rydb. 'Gold Drop'. Gold Drop Potentilla. DeLongH
101. [ ] Fallugia paradoxa (D. Don) Endl. Apache Plume. DeLongH
102. [ ] Rosa 'Knock Out'. Knock Out Rose. DeLongH
104. [ ] Galium aparine L. (Syn: Galium aparine L. var. echinospermum (Wallr.) Farw. , Galium spurium L. ) Sticky Willy, Cleavers. Weed
106. [ ] Comandra umbellata (L.) Nutt. ssp. pallida (A. DC.) Piehl. (Syn: Comandra umbellata (L.) Nutt. var. pallida (A. DC.) M. E. Jones ) Pale Bastard Toadflax.
108. [ ] Acer miyabei Maxim. 'Morton'. State Street Maple. DeLongH
109. [ ] Acer saccharum L. 'JFS-Caddo'. Caddo Sugar Maple. DeLongH
111. [ ] Heuchera villosa × americana 'Berry Smoothie'. Coral Bells 'Berry Smoothie'. DeLongH
113. [ ] Scrophularia lanceolata Pursh. Lanceleaf Figwort.
115. [ ] Solanum elaeagnifolium Cav. Silverleaf Nightshade.
116. [ ] Solanum rostratum Dunal. Buffalo Bur Nightshade. Native, but very prickly, Weed
117. [ ] Solanum triflorum Nutt. Cutleaf Nightshade. Native, but very weedy. Weed.
119. [ ] Ulmus pumila L. Siberian Elm. Weed, 1000s of seedlings. Weed: CO DofA, List: C.
121. [ ] Verbena bracteata Lag. & Rodr. Large Bract Vervain. Weed
123. [ ] Tribulus terrestris L. Puncture Vine. Weed: CO DofA, List: C.
125. [ ] Hesperaloe parviflora (Torr.) Coult. Red False Yucca. DeLongH
127. [ ] Kniphofia uvaria (L.) Oken 'Flamenco'. Torch Lily. DeLongH
129. [ ] Carex inops L.H. Bailey ssp. heliophila (Mack.) Crins. (Syn: C. pensylvanica Lam. ssp. heliophila (Mack.) W. A. Weber ) Sun Sedge.
131. [ ] Agropyron cristatum (L.) Gaertn. Crested Wheat Grass.
132. [ ] Andropogon gerardii Vitman. Big Bluestem.
133. [ ] Bothriochloa bladhii (Retz.) S.T. Blake. Australian bluestem, Caucasian Bluestem.
134. [ ] Bouteloua dactyloides (Nutt.) J.T. Columbus. (Syn: Buchloe dactyloides (Nutt.) Engelm. ) Buffalo Grass. DeLongH
135. [ ] Bouteloua gracilis (Kunth) Lag. ex Griffiths. (Syn: Chondrosum gracile Kunth ) Blue Grama. DeLongH
136. [ ] Bromus japonicus Thunb. Japanese Cheat Grass.
137. [ ] Bromus tectorum L. (Syn: B. tectorum L. var. glabratus Spenn. ) Cheat Grass. Weed: CO DofA, List: C.
138. [ ] Cenchrus longispinus (Hack.) Fern. Longspine Sandbur. Native, but very prickly, Weed
139. [ ] Dactylis glomerata L. Orchard Grass. Non-native grass, Weed.
140. [ ] Distichlis spicata (L.) E. Greene. (=Distichlis stricta (Torrey) Rydberg) Saltgrass. DeLongH
141. [ ] Echinochloa crus-galli (L.) P. Beauv. Barnyardgrass. Non-native grass, Weed.
142. [ ] Elymus canadensis L. Canadian Wildrye.
143. [ ] Eragrostis cilianensis (All.) Vignolo ex Janch. Stinkgrass. Weed
144. [ ] Eriocoma hymenoides (Roem. & Schult.) Rydb. (Syn: Achnatherum hymenoides (Roem. & Schult.) Barkworth , Oryzopsis hymenoides (Roem. & Schult.) Ricker , Stipa hymenoides Roem. & Schult. ) Indian Rice Grass. DeLongH
145. [ ] Hesperostipa comata (Trin. & Rupr.) Barkworth. (Syn: Stipa comata Trin. & Rupr. ) Needle and Thread.
146. [ ] Lolium multiflorum Lam. (Syn: L. perenne L. ssp. multiflorum (Lam.) Husn. ) Annual Ryegrass.
147. [ ] Nassella viridula (Trin.) Barkworth. (Syn: Stipa viridula Trin. ) Green Needlegrass.
148. [ ] Panicum miliaceum L. Proso Millet. Weed: CO DofA, List: C.
149. [ ] Pascopyrum smithii (Rydb.) Á. Löve. (Syn: Agropyron smithii Rydb. ) Western Wheatgrass. Native tall cool-season grass that can dominate, Thin. DeLongH
150. [ ] Pennisetum alopecuroides (L.) Spreng. 'Hameln'. Dwarf Fountain Grass. DeLongH
151. [ ] Poa annua L. Annual Blue Grass. Weed
152. [ ] Poa bulbosa L. Bulbous Bluegrass. Weed: CO DofA, List: C.
153. [ ] Secale cereale L. Cereal Rye.
154. [ ] Setaria viridis (L.) P. Beauv. Green Bristlegrass. Weed
155. [ ] Sporobolus heterolepis (A. Gray) A. Gray. Prairie Drop-seed. DeLongH
156. [ ] Triticum aestivum L. Wheat.
| Total number of taxa: | 113 |
| Native Taxa: (serif, italic, bold) | 37 |
| Exotic Taxa: (sans-serif, italic) | 74 |
| Nativity Undetermined: (default font, italic) | 2 |
| Listed Weeds: Identified as Weed | 17 |
Locations Included in This Area
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Date and time this article was prepared: 5/12/2025 3:05:51 PM