Oenothera villosa ssp. strigosa

(Hairy Evening Primrose)

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Oenothera villosa ssp. strigosa, Frisco Peninsula, Summit Co. 7754

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Oenothera villosa ssp. strigosa, Gore Pass, Grand Co. 1923

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Oenothera villosa ssp. strigosa, Gore Pass, Grand Co. 1953

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Oenothera villosa ssp. strigosa, Frisco Peninsula, Summit Co. 7735

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Oenothera villosa ssp. strigosa, Frisco Peninsula, Summit Co. 7733

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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, usually smooth 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; distance between nodes equal or longer 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
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