Calflora, a 501c3 non-profit
Distribution by County   1805    
Ceanothus masonii  McMinn
Bolinas ceanothus,   Mason's ceanothus
Ceanothus masonii is a shrub that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
State of California status: Rare.
Record Count by County

Alameda: 1 Marin: 44 Mendocino: 1

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).