Calflora, a 501c3 non-profit
Distribution by County   12016    
Sidalcea asprella  Greene
Harsh checker mallow
Sidalcea asprella is a perennial herb (rhizomatous) that is native to California.
Record Count by County

Alpine: 6 El Dorado: 33 Placer: 19 Tehama: 2
Amador: 7 Humboldt: 22 Plumas: 3 Trinity: 9
Butte: 31 Lassen: 3 Shasta: 13 Tuolumne: 9
Calaveras: 8 Mariposa: 9 Sierra: 3 Yuba: 7
Del Norte: 5 Nevada: 18 Siskiyou: 16

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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 02/10/2026).