Common Names: Hooker’s Evening Primrose, Hooker’s Evening-primrose
Synonyms: Oenothera elata
Subspecies: hookeri, hirsutissima, longisima, jamesii, villosa and elata
Taxonomy: Onagraceae (Evening Primrose)
Habit: biennial forb, herb
Size: up to 6 feet
Flowers: yellow
Bloom: Apr, May, Jun, Jul, Aug, Sep, Oct
Leaves: alternate
Fruit: capsule
Description:
The stout, usually reddish stem has many long, narrow leaves, above a basal rosette. At its top is a large, open cluster of 2-4 inch wide yellow flowers with 4 large petals and protruding yellow stamens and 4-branched pistil, often covered in sticky pollen. The fragrant flowers open at dusk and wilt the next morning, turning orange or red.
Distribution: AZ, CA, CO, ID, KS, MT, NM, NV, OK, OR, TX, UT, WA, WY
Seen: NV (Mountain Springs Summit)
Habitat: roadsides, in moist meadows, or woodland, from sea level up to 9,000 ft (2,700 m)
