Calflora, a 501c3 non-profit
Distribution by County   86    
Achyronychia cooperi  Torr. & A. Gray
Frost mat,   Onyxflower
Achyronychia cooperi is an annual herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Imperial: 81 Riverside: 172 San Diego: 140
Inyo: 22 San Bernardino: 165

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: https://www.calflora.org/   (Accessed: 11/21/2024).