Calflora, a 501c3 non-profit
Distribution by County   2151    
Cirsium vulgare  (Savi) Ten.
Bull thistle
Cirsium vulgare is a perennial herb that is not native to California.
Cal-IPC rating: moderate
Record Count by County

Alameda: 343 Lake: 69 Plumas: 112 Siskiyou: 204
Alpine: 258 Lassen: 161 Riverside: 141 Solano: 147
Amador: 19 Los Angeles: 816 Sacramento: 43 Sonoma: 372
Butte: 150 Madera: 297 San Benito: 45 Stanislaus: 16
Calaveras: 46 Marin: 722 San Bernardino: 220 Sutter: 13
Colusa: 26 Mariposa: 2097 San Diego: 281 Tehama: 201
Contra Costa: 536 Mendocino: 158 San Francisco: 85 Trinity: 185
Del Norte: 69 Merced: 37 San Joaquin: 18 Tulare: 306
El Dorado: 438 Modoc: 128 San Luis Obispo: 123 Tuolumne: 2182
Fresno: 351 Mono: 90 San Mateo: 812 Ventura: 98
Glenn: 111 Monterey: 189 Santa Barbara: 92 Yolo: 25
Humboldt: 140 Napa: 35 Santa Clara: 457 Yuba: 21
Inyo: 194 Nevada: 204 Santa Cruz: 302
Kern: 66 Orange: 496 Shasta: 273
Kings: 9 Placer: 203 Sierra: 142

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: 11/23/2024).