Calflora, a 501c3 non-profit
Distribution by County   11483    
Caulanthus lasiophyllus  (Hook. & Arn.) Payson
California mustard
Caulanthus lasiophyllus is an annual herb that is native to California, and also found elsewhere in western North America.
also called Guillenia lasiophylla
Record Count by County

Alameda: 33 Kings: 14 Sacramento: 3 Shasta: 10
Butte: 9 Lake: 13 San Benito: 74 Solano: 9
Colusa: 11 Los Angeles: 192 San Bernardino: 385 Sonoma: 14
Contra Costa: 35 Marin: 43 San Diego: 229 Stanislaus: 10
El Dorado: 1 Mariposa: 2 San Francisco: 15 Tehama: 8
Fresno: 81 Mendocino: 7 San Joaquin: 8 Trinity: 2
Glenn: 3 Merced: 15 San Luis Obispo: 286 Tulare: 4
Humboldt: 2 Monterey: 73 San Mateo: 42 Ventura: 95
Imperial: 62 Napa: 33 Santa Barbara: 142 Yolo: 11
Inyo: 108 Orange: 8 Santa Clara: 39
Kern: 196 Riverside: 135 Santa Cruz: 13

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).