Calflora, a 501c3 non-profit
Distribution by County   1486    
Cardamine hirsuta  L.
Hairy bitter cress,   Hairy bittercress
Cardamine hirsuta is an annual herb that is not native to California.
Record Count by County

Alameda: 9 Madera: 1 San Diego: 33 Stanislaus: 2
Amador: 8 Marin: 7 San Francisco: 7 Sutter: 2
Butte: 20 Mendocino: 9 San Joaquin: 3 Tehama: 6
Calaveras: 3 Monterey: 75 San Luis Obispo: 31 Trinity: 4
Colusa: 2 Napa: 6 San Mateo: 26 Tulare: 1
Contra Costa: 11 Nevada: 71 Santa Barbara: 7 Tuolumne: 1
El Dorado: 19 Orange: 29 Santa Clara: 17 Ventura: 1
Fresno: 1 Placer: 4 Santa Cruz: 21 Yolo: 7
Glenn: 1 Plumas: 5 Shasta: 7 Yuba: 3
Humboldt: 7 Riverside: 6 Siskiyou: 1
Lake: 7 Sacramento: 4 Solano: 3
Los Angeles: 16 San Bernardino: 6 Sonoma: 11

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).