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Taxon  Report  
Oenothera deltoides  Torr. & Frém.  ssp. howellii  (Munz) W. M. Klein
Antioch dunes evening primrose
Oenothera deltoides ssp. howellii is a perennial herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
State of California status: Endangered. Federal status: Endangered.
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Observation Search
~76 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
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Bloom Period
Parent: Oenothera deltoides
Genus: Oenothera
Family: Onagraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Habitat: dunes

Communities: Coastal Strand

Name Status:
Accepted by JEF + CNPS + PLANTS
Alternate Names:
PLANTSOenothera deltoides var. howellii
Information about  Oenothera deltoides ssp. howellii from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

USDA PLANTS Profile (OEDEH)

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

Birdcage Plant: How does resembling a birdcage help this plant?

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/23/2025).