Calflora, a 501c3 non-profit
Distribution by County   6806    
Potamogeton crispus  L.
Crispate leaved pondweed,   Curly pondweed,   Cut leaved pondweed
Potamogeton crispus is a perennial herb (aquatic) that is not native to California.
Cal-IPC rating: moderate
Record Count by County

Alameda: 11 Kings: 5 Napa: 2 Santa Barbara: 8
Butte: 17 Lake: 5 Nevada: 9 Santa Clara: 9
Colusa: 1 Los Angeles: 18 Orange: 8 Shasta: 8
Contra Costa: 8 Madera: 5 Placer: 4 Siskiyou: 42
El Dorado: 148 Marin: 2 Plumas: 7 Solano: 5
Fresno: 4 Mariposa: 1 Riverside: 9 Sonoma: 14
Glenn: 4 Mendocino: 3 Sacramento: 6 Stanislaus: 4
Humboldt: 4 Merced: 5 San Bernardino: 23 Tehama: 5
Imperial: 1 Modoc: 2 San Diego: 2 Yolo: 3
Inyo: 1 Mono: 2 San Joaquin: 9 Yuba: 2
Kern: 12 Monterey: 1 San Mateo: 6

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: 04/01/2025).