Calflora, a 501c3 non-profit
Distribution by County   5258    
Lythrum californicum  Torr. & A. Gray
California loosestrife,   Common loosestrife
Lythrum californicum is a perennial herb that is native to California, and also found elsewhere in western North America.
Record Count by County

Alameda: 6 Lake: 3 Riverside: 77 Siskiyou: 1
Amador: 3 Los Angeles: 38 Sacramento: 10 Solano: 29
Butte: 2 Madera: 2 San Benito: 2 Stanislaus: 1
Calaveras: 2 Marin: 4 San Bernardino: 83 Sutter: 2
Colusa: 13 Mariposa: 1 San Diego: 82 Tehama: 1
Contra Costa: 20 Mendocino: 1 San Francisco: 1 Tulare: 12
Fresno: 10 Merced: 2 San Joaquin: 6 Tuolumne: 2
Glenn: 4 Mono: 4 San Luis Obispo: 29 Ventura: 40
Imperial: 1 Monterey: 9 San Mateo: 1 Yolo: 11
Inyo: 58 Napa: 5 Santa Barbara: 26
Kern: 33 Orange: 42 Santa Clara: 6
Kings: 1 Placer: 1 Shasta: 1

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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 12/05/2025).