Taxon  Report   5893 
Oenothera deltoides  Torr. & Frém.  ssp. howellii  (Munz) W. M. Klein
Antioch dunes evening primrose
Oenothera deltoides ssp. howellii
© 2011 Zoya Akulova
More photos from
CalPhotos / Calflora
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.
CNPS Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

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

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Observation Hotline
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point, line, or polygon

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
Distribution by County 

Add an Observation of  Oenothera deltoides ssp. howellii

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

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

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

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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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Jun 20, 2018).

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