Oenothera villosa ssp. strigosa
(Hairy Evening Primrose)
Oenothera villosa ssp. strigosa, Frisco Peninsula, Summit Co. 7754
Oenothera villosa ssp. strigosa, Gore Pass, Grand Co. 1923
Oenothera villosa ssp. strigosa, Gore Pass, Grand Co. 1953
Oenothera villosa ssp. strigosa, Frisco Peninsula, Summit Co. 7735
Oenothera villosa ssp. strigosa, Frisco Peninsula, Summit Co. 7733
Leaves, Oenothera villosa ssp. strigosa, Gore Pass, Grand Co. 1945
| Scientific Name | Oenothera villosa ssp. strigosa | USDA PLANTS Symbol | OEVIS |
| Common Name | Hairy Evening Primrose, Common Evening Primrose | ITIS Taxonomic Serial No. | 524368 |
| Family | Onagraceae (Evening Primrose) | SEINet Reference |
Click Here |
| Description |
Life zones and habitat: Plains to montane (4800 to 9500 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 wavy, 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, opening in the evening. 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. 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