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 villosa subsp. villosa
Photo is of parent taxon

hairy evening-primrose
Habit Herbs dull green to grayish green, densely strigillose, sometimes also sparsely villous with appressed or subappressed hairs, these without or with red or green pustules, rarely glandular puberulent distally.
Leaves

grayish green to dull green, blade margins conspicuously dentate, sometimes sinuate-dentate proximally, venation prominent, especially abaxially, usually pale green, rarely red.
Inflorescences

relatively dense, apex truncate, internodes in fruit conspicuously shorter than capsules.
Flowers

sepals green to yellowish green.
2n

= 14.

Oenothera villosa subsp. villosa
Phenology Flowering Jul–Aug(–Sep).
Habitat Open, often wet sites, streamsides, fields, roadsides.
Elevation 30–1500(–1700) m. (100–4900(–5600) ft.)
Distribution
from FNA
AL; AR; CO; CT; GA; IA; IL; IN; KS; KY; MA; MD; ME; MI; MN; MO; MS; MT; NC; ND; NE; NH; NJ; NY; OH; OK; PA; SD; TN; TX; VA; VT; WI; WV; WY; AB; BC; MB; NB; NS; ON; QC; SK [Introduced in s South America, Europe, Asia, s Africa]
[BONAP county map]
Discussion

Subspecies villosa appears to be largely a taxon of the Great Plains that has subsequently, both naturally and with human assistance, spread to the north and east, primarily in historical times. It grows in a variety of habitats, primarily prairies, along streams or lakes, open woodlands, old fields, and other disturbed sites, and is widely naturalized in Asia, Europe, southern South America, and South Africa.

Oenothera strigosa (Rydberg) Mackenzie & Bush var. depressa (Greene) R. R. Gates is an illegitimate name, as is O. salicifolia Desfontaines ex G. Don 1837, not Lehmann 1824 and not Desfontaines ex Seringe 1825, and these names 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 villosa
Sibling taxa
O. villosa subsp. strigosa
Synonyms O. albinervis, O. bauri, O. biennis var. canescens, O. canovertex, O. canovirens, O. cockerellii, O. depressa, O. erosa, O. hookeri var. parviflora, O. hungarica, O. muricata var. canescens, O. muricata subsp. hungarica, O. parviflora var. canescens, O. renneri, O. strigosa var. albinervis, O. strigosa subsp. canovirens, O. strigosa var. cockerellii, O. strigosa subsp. hungarica, O. velutinifolia, Onagra depressa, O. hungarica
Name authority unknown
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

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