[Wikipedia] Taxonomy: Named and described by Coville in 1892, the shrub favours limestone outcrops at elevations of 700 - 2000 m, where it is often found in association with Joshua trees. (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: 03/31/2025).
