Calflora, a 501c3 non-profit
Distribution by County   6210    
Penstemon rupicola  (Piper) Howell
Cliff beardtongue,   Rock beardtongue,   Rock penstemon
Penstemon rupicola is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Del Norte: 2 Mendocino: 1 Shasta: 7 Tehama: 2
Lake: 1 Mono: 1 Siskiyou: 4 Trinity: 4

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).