Calflora, a 501c3 non-profit
Distribution by County   11036    
Polygonum ramosissimum  Michx.  ssp. prolificum  (Small) Costea & Tardif
Bushy knotweed
Polygonum ramosissimum ssp. prolificum is an annual herb that is not native to California.
Record Count by County

Fresno: 1 Marin: 1 Plumas: 2 Tuolumne: 2
Glenn: 1 Monterey: 1 San Bernardino: 1 Ventura: 3
Madera: 3 Placer: 1 Sonoma: 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: 11/24/2024).