Calflora, a 501c3 non-profit
Distribution by County   2191    
Clarkia gracilis  (Piper) A. Nelson & J. F. Macbr.  ssp. sonomensis  (C. L. Hitchc.) H. Lewis & M. Lewis
Sonoma clarkia
Clarkia gracilis ssp. sonomensis is an annual herb that is native to California, and found only slightly beyond California borders.
Record Count by County

Colusa: 2 Lake: 27 Mendocino: 12 Sonoma: 23
Humboldt: 1 Marin: 29 Napa: 6

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: 06/18/2024).