Calflora, a 501c3 non-profit
Distribution by County   1076    
Berberis pinnata  Lag.  ssp. insularis  Munz
Island barberry
Berberis pinnata ssp. insularis is a shrub that is native to California, and endemic (limited) to California.
also called Mahonia pinnata ssp. insularis
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
State of California status: Endangered. Federal status: Endangered.
Record Count by County

Santa Barbara: 30 Ventura: 6

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 06/07/2023).