Taxon  Report   1420    
Camissonia contorta  (Douglas) Kearney
Contorted sun cup,  Plains evening primrose
Camissonia contorta
© 2009 Keir Morse
Photos from
CalPhotos / Calflora
Camissonia contorta
© 2015 Debra L. Cook
Camissonia contorta
© 2014 Jean Pawek
Camissonia contorta, a dicot, is an annual herb that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Camissonia contorta
© 2009 Keir Morse
Genus: Camissonia
Communities: Sagebrush Scrub, Yellow Pine Forest
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Oenothera dentata
ICPN + PLANTS: Oenothera contorta
ICPN + PLANTS: Oenothera cruciata
. . .
More information about  Camissonia contorta
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 24, 2019).