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Camissonia contorta (Plains evening-primrose)
Bransford, W.D. and Dolphia

Camissonia contorta

Camissonia contorta (Douglas ex Lehm.) Kearney

Plains Evening-primrose

Onagraceae (Evening Primrose Family)

Synonym(s): Oenothera contorta, Oenothera cruciata, Oenothera dentata

USDA Symbol: CACO34

USDA Native Status: L48 (N), CAN (N)


From the Image Gallery

4 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Fruit Type: Capsule
Size Notes: Up to about 20 inches tall.

Bloom Information

Bloom Color: Red , Yellow
Bloom Time: Mar , Apr , May , Jun , Jul
Bloom Notes: Yellow with red dots.


USA: CA , ID , NV , OR , WA
Canada: BC , PE

Growing Conditions

Light Requirement: Sun

Butterflies and Moths of North America (BAMONA)

Kern primrose sphinx
(Euproserpinus euterpe)

Larval Host
Learn more at BAMONA


Bibref 1186 - Field Guide to Moths of Eastern North America (2005) Covell, C.V., Jr.
Bibref 1185 - Field Guide to Western Butterflies (Peterson Field Guides) (1999) Opler, P.A. and A.B. Wright

Search More Titles in Bibliography

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Camissonia contorta in USDA Plants
FNA: Find Camissonia contorta in the Flora of North America (if available)
Google: Search Google for Camissonia contorta


Record Modified: 2023-04-19
Research By: TWC Staff

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