Calflora, a 501c3 non-profit
Distribution by County   4369    
Isocoma arguta  Greene
Carquinez goldenbush,   Carquinez isocoma
Isocoma arguta is a shrub that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
Record Count by County

Contra Costa: 3 San Bernardino: 1 Solano: 36

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:   (Accessed: 04/12/2024).