Calflora, a 501c3 non-profit
Distribution by County   6249    
Perideridia howellii  (J. M. Coult. & Rose) Mathias
Howell's yampah
Perideridia howellii is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Butte: 4 Lake: 2 Mono: 2 Sierra: 2
Calaveras: 2 Mariposa: 10 Nevada: 1 Tehama: 1
Colusa: 2 Mendocino: 9 Plumas: 7 Tuolumne: 1
Humboldt: 4 Modoc: 1 Shasta: 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: 12/03/2024).