Calflora
Taxon  Report   1076    
Berberis pinnata  Lag.  ssp. insularis  Munz
Island barberry
Berberis pinnata ssp. insularis
© 2006 Steve Matson
Photos from
CalPhotos / Calflora
Berberis pinnata ssp. insularis
© 2006 Steve Matson
Berberis pinnata ssp. insularis
© 2014 Zoya Akulova
Berberis pinnata ssp. insularis, a dicot, is a shrub that is native to California, is endemic (limited) to California.
also called Mahonia pinnata ssp. insularis
CNPS Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

It is listed by the State of California as Endangered and by the Federal Government as 'Endangered '.

Interactive Distribution Map


Observation Hotline
(observation details)



point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Berberis pinnata ssp. insularis
© 2006 Steve Matson
Family: BERBERIDACEAE  
Genus: Berberis
Parent: Berberis pinnata
Communities: Foothill Woodland, Coastal Sage Scrub, Closed-cone Pine Forest

Toxicity: MAJOR

Name Status:
Accepted by JEF + CNPS

PLANTS accepted name:
Mahonia pinnata ssp. insularis

Alternate Names:
ICPN + CNPS: Mahonia pinnata ssp. insularis
More information about  Berberis pinnata ssp. insularis
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (MAPII)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Jan 18, 2019).