Berberis nevinii is a shrub that is native to California, and endemic (limited) to California.
also called Mahonia nevinii
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
State of California status: Endangered.
Federal status: Endangered.
[saveplants.org] Range: The distribution of Berberis nevinii is scattered with populations located throughout southern California in Los Angeles, Riverside, and San Bernardino counties. (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: 03/30/2025).
one or more occurrences