Calflora, a 501c3 non-profit
Distribution by County   6266    
Petalonyx thurberi  A. Gray
Sandpaper plant,   Thurber's sandpaper plant
Petalonyx thurberi is a perennial herb that is native to California, and also found elsewhere in western North America.

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: https://www.calflora.org/   (Accessed: 11/30/2022).