Calflora, a 501c3 non-profit
Distribution by County   469    
Arabis macdonaldiana  Eastw.

(not an active name)

Mcdonald's rock cress
Arabis macdonaldiana is a perennial herb that is native to California, and also found in Oregon.
Record Count by County

Del Norte: 80 Mendocino: 24 Siskiyou: 10

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: 07/21/2024).