Taxon  Report   5893 
Oenothera deltoides  Torrey & Fremont  ssp. howellii  (Munz) Klein
Antioch dunes evening primrose
Oenothera deltoides ssp. howellii
© 2011 Zoya Akulova
Click on a photo to see it bigger.
Oenothera deltoides ssp. howellii
© 2013 Robert Sikora
Oenothera deltoides ssp. howellii
© 2004 John Game
Oenothera deltoides ssp. howellii, a dicot, is a perennial herb that is native to California and is endemic (limited) to California.
It is included in the CNPS Inventory of Rare and Endangered Plants on list 1B.1 (rare, threatened, or endangered in CA and elsewhere).   7th Edition  /  8th Edition

It is listed by the State of California as Endangered and by the Federal Government as 'Endangered '.

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one or more occurrences
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Plant Characteristics
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Bloom Period
Oenothera deltoides ssp. howellii
© Jo-Ann Ordano 2005 California Academy of Sciences
Genus: Oenothera
Parent Record Oenothera deltoides
Coastal Strand
Habitat: dunes [CNPS Inventory]
Distribution by County 

Add an Observation of  Oenothera deltoides ssp. howellii

Name Status:
Accepted by TJM2 + CNPS + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Oenothera deltoides var. howellii
More information about  Oenothera deltoides ssp. howellii
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Photos on CalPhotos / Google Images
Photos and ID tips from

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 25, 2016).

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