Calflora, a 501c3 non-profit
Distribution by County   10670    
Polygonum aviculare  L.  ssp. rurivagum  (Jordan ex Boreau) Berher
Prostrate knotweed
Polygonum aviculare ssp. rurivagum is an annual or perennial herb that is not native to California.
Record Count by County

Alameda: 1 Contra Costa: 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/23/2024).