Calflora, a 501c3 non-profit
Distribution by County   11397    
Boechera koehleri  (Howell) Al-Shehbaz
Koehler's rockcress
Boechera koehleri is a perennial herb that is native to California, and also found in Oregon.
California Rare Plant Rank: 1B.3 (rare, threatened, or endangered in CA and elsewhere).
Record Count by County

Del Norte: 31 Siskiyou: 8 Trinity: 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]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 06/05/2023).