[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)
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: 03/28/2025).
