Calflora, a 501c3 non-profit
Distribution by County   7628    
Sisymbrium irio  L.
London rocket
Sisymbrium irio is an annual herb that is not native to California.
Cal-IPC rating: limited
Record Count by County

Alameda: 5 Lassen: 1 Placer: 1 Santa Barbara: 56
Amador: 1 Los Angeles: 179 Riverside: 276 Santa Clara: 7
Butte: 1 Madera: 8 Sacramento: 3 Stanislaus: 4
Colusa: 1 Mariposa: 30 San Benito: 29 Tehama: 1
El Dorado: 1 Merced: 5 San Bernardino: 305 Tulare: 45
Fresno: 127 Modoc: 1 San Diego: 362 Ventura: 62
Imperial: 121 Mono: 1 San Francisco: 7 Yolo: 3
Inyo: 75 Monterey: 14 San Joaquin: 1
Kern: 125 Napa: 4 San Luis Obispo: 46
Kings: 8 Orange: 135 San Mateo: 2

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).