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Taxon  Report  
Camissoniopsis bistorta  (Torr. & A. Gray) W.L. Wagner & Hoch
California sun cup
Camissoniopsis bistorta is an annual herb that is native to California, and found only slightly beyond California borders.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
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Bloom Period
Genus: Camissoniopsis
Family: Onagraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Habitat: coastal

Communities: Coastal Strand, Coastal Sage Scrub, Southern Oak Woodland, Chaparral

Name Status:
Accepted by JEF + POWO

Alternate Names:
JEFCamissonia bistorta
JEFOenothera bistorta var. veitchiana
JEFOenothera bistorta
JEFOenothera heterophylla
Information about  Camissoniopsis bistorta from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

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Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Taxonomy: The type specimen was collected by Thomas Nuttall on his 1836 voyage to San Diego. The name bistorta means "twice-twisted," referring to the fact that the fruit does a double turn.[3] Phylogenetic analysis place this species in a clade with Camissoniopsis hirtella and Camissoniopsis cheiranthifolia.[5] It hybridizes with C. cheiranthifolia subsp. suffruticosa. (link added by Mary Ann Machi)


Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/11/2024).