Calflora, a 501c3 non-profit
Distribution by County   4314    
Hypochaeris radicata  L.
Hairy cats ear,   Hairy catsear,   Rough cat's ear
Hypochaeris radicata is a perennial herb that is not native to California.
Cal-IPC rating: moderate
Record Count by County

Alameda: 59 Kings: 6 Riverside: 4 Siskiyou: 32
Alpine: 2 Lake: 10 Sacramento: 35 Solano: 22
Amador: 5 Los Angeles: 19 San Benito: 196 Sonoma: 311
Butte: 92 Madera: 37 San Bernardino: 5 Stanislaus: 15
Calaveras: 11 Marin: 656 San Diego: 39 Sutter: 11
Colusa: 4 Mariposa: 37 San Francisco: 124 Tehama: 33
Contra Costa: 52 Mendocino: 184 San Joaquin: 5 Trinity: 6
Del Norte: 53 Merced: 18 San Luis Obispo: 56 Tulare: 17
El Dorado: 33 Monterey: 222 San Mateo: 244 Tuolumne: 14
Fresno: 83 Napa: 25 Santa Barbara: 47 Ventura: 11
Glenn: 2 Nevada: 36 Santa Clara: 56 Yolo: 12
Humboldt: 76 Orange: 14 Santa Cruz: 161 Yuba: 30
Inyo: 1 Placer: 13 Shasta: 33
Kern: 4 Plumas: 16 Sierra: 3

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: 01/12/2026).