Calflora, a 501c3 non-profit
Distribution by County   6745    
Polygonum convolvulus  L.

(not an active name)
Black bindweed
Polygonum convolvulus is an annual herb that is not native to California.
also called Fallopia convolvulus
Record Count by County

Alameda: 2 Los Angeles: 3 San Bernardino: 26 Siskiyou: 1
Alpine: 3 Madera: 2 San Diego: 3 Sonoma: 4
Butte: 9 Mariposa: 30 San Francisco: 1 Tehama: 1
Del Norte: 1 Modoc: 1 San Luis Obispo: 2 Tulare: 2
El Dorado: 2 Mono: 4 San Mateo: 3 Ventura: 2
Fresno: 3 Monterey: 1 Santa Barbara: 3 Yuba: 4
Humboldt: 8 Placer: 2 Santa Clara: 1
Lake: 3 Plumas: 1 Santa Cruz: 3
Lassen: 2 Riverside: 2 Shasta: 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: 12/22/2024).