Calflora, a 501c3 non-profit
Distribution by County   5001    
Lomatium observatorium  Constance & Ertter
Mt. hamilton lomatium
Lomatium observatorium is a perennial herb that is native to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   CNDDB
Record Count by County

Alameda: 1 Santa Clara: 18 Stanislaus: 8

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]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 09/30/2022).