Flora of North America species comparison

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Oenothera elata subsp. hookeri
Photo is of parent taxon

evening primrose, Hooker's evening primrose
Habit Herbs strigillose, also villous with appressed or spreading hairs, usually these with conspicuous red-pustulate bases, also glandular puberulent.
Flowers

buds flushed with red, with free tips 1–5 mm;

petals 25–40 mm;

anthers 12–23 mm.
2n

= 14.

Oenothera elata subsp. hookeri
Phenology Flowering Aug–Oct.
Habitat Moist coastal and slightly in­land sandy and bluff habitats.
Elevation 0–200 m. (0–700 ft.)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Subspecies hookeri has a restricted range in California from around San Francisco Bay along the coast from the vicinity of Petaluma, Sonoma County, and Point Reyes south to Santa Barbara County, including Santa Cruz Island, and south to San Diego County. It intergrades along the inland margins of the range with subsp. hirsutissima.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 10.
Parent taxa Onagraceae > subfam. Onagroideae > tribe Onagreae > Oenothera > sect. Oenothera > subsect. Oenothera > Oenothera elata
Sibling taxa
O. elata subsp. hirsutissima
Synonyms O. hookeri, O. biennis var. hookeri, O. communis var. hookeri, O. franciscana, O. hookeri var. franciscana, O. hookeri subsp. montereyensis, O. hookeri var. montereyensis, O. montereyensis, Onagra hookeri
Name authority (Torrey & A. Gray) W. Dietrich & W. L. Wagner: Ann. Missouri Bot. Gard. 74: 152. (1987)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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