Oenothera villosa ssp. villosa
(Hairy Evening Primrose)
Oenothera villosa ssp. villosa, Overland Trail Recreation Area, Sterling, Logan Co. 8430
Oenothera villosa ssp. villosa, Pawnee Buttes, Weld Co. 7863
Oenothera villosa ssp. villosa, Pawnee Buttes, Weld Co. 7849
Oenothera villosa ssp. villosa, Pawnee Buttes, Weld Co. 7861
Oenothera villosa ssp. villosa, Overland Trail Recreation Area, Sterling, Logan Co. 8444
Oenothera villosa ssp. villosa, Overland Trail Recreation Area, Sterling, Logan Co. 8421
Oenothera villosa ssp. villosa, Pawnee Buttes, Weld Co. 7858
Oenothera villosa ssp. villosa, Overland Trail Recreation Area, Sterling, Logan Co. 8426
| Scientific Name | Oenothera villosa ssp. villosa | USDA PLANTS Symbol | OEVIV |
| Common Name | Hairy Evening Primrose, Common Evening Primrose | ITIS Taxonomic Serial No. | 524369 |
| Family | Onagraceae (Evening Primrose) | SEINet Reference |
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| Description |
Life zones and habitat: Plains to montane (3500 to 8700 ft.); dry shrubland, roadsides and disturbed areas. Plant: Erect biennial or short-lived perennial 1 to 5 feet tall; basal rosette forms in first year, erect, stiff stem develops in second. Leaves: Stem leaves lanceolate to elliptic, alternate, hairy with toothed edges, 4 to 12 inches long and 1/2 to 1-1/2 inches wide. Inflorescence: Spike of a few erect flower buds atop a 1 to 1-1/2 inch long calyx tube with large hairy bract or leaf below each; yellow blossom 1 to 1-1/2 inches across aging to orange, opening in the evening; densely hairy sepals. Bloom Period: June to September. Fruit: Narrowly lanceolate-cylindrical, hairy capsules, 3/4 to 1-3/8 inches long and less than 1/4-inch wide; distance between nodes about equal or less than the length of the capsules. References: "Flora of Colorado" by Jennifer Ackerfield, SEINet and E-Flora BC. |
BONAP Distribution Map Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2024
Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains