Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Oenothera elata subsp. hirsutissima
Photo is of parent taxon

evening primrose
Habit Herbs strigillose, usually also villous, with appressed or spreading hairs, sometimes these with red-pustulate bases, distally sometimes also glandular puberulent.
Flowers

buds green to yellowish green, red-striped, or sometimes red throughout, with free tips 2–7 mm;

petals 30–47(–55) mm;

anthers 8–15(–22) mm.
2n

= 14.

Oenothera elata subsp. hirsutissima
Phenology Flowering (Apr–)Jul–Sep(–Oct).
Habitat Montane sites along streams, mesic meadows, roadsides, near permanent or seasonally wet sites, ditch banks, riverbanks, flood plains, fallow agricultural land.
Elevation 10–3000 m. (0–9800 ft.)
Distribution
from FNA
AZ; CA; CO; ID; KS; NM; NV; OK; OR; TX; UT; WA; Mexico (n Baja California, Chihuahua, Coahuila, Durango, Sinaloa, Sonora)
[BONAP county map]
Discussion

Subspecies hirsutissima occurs throughout much of the western United States, but with only scattered populations in Oklahoma (Custer, Logan, and McCurtain counties) and in eastern Texas (Anderson, Brazos, and Leon counties) and western Texas (Brewster, Culberson, Jeff Davis, and Presidio counties).

Onagra spectabilis Spach is an illegitimate name as is Oenothera corymbosa Sims 1818, not Lamarck 1798, and both pertain here.

(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. hookeri
Synonyms O. biennis var. hirsutissima, O. elata var. hirsutissima, O. elata subsp. texensis, O. grisea, O. hewettii, O. hirsutissima, O. hookeri subsp. angustifolia, O. hookeri var. angustifolia, O. hookeri subsp. grisea, O. hookeri var. grisea, O. hookeri subsp. hewettii, O. hookeri var. hewettii, O. hookeri subsp. hirsutissima, O. hookeri var. hirsutissima, O. hookeri var. irrigua, O. hookeri subsp. ornata, O. hookeri var. ornata, O. hookeri var. semiglabra, O. hookeri var. simsiana, O. hookeri subsp. venusta, O. hookeri var. venusta, O. irrigua, O. jepsonii, O. macbrideae, O. ornata, O. simsiana, O. venusta, O. venusta var. grisea, Onagra macbrideae, O. ornata
Name authority (A. Gray ex S. Watson) W. Dietrich: Ann. Missouri Bot. Gard. 70: 195. (1983)
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America, OregonFlora

The species comparison tool is brought to you by:
Northwest Wildflowers