Distribution by County   6766    
Polygonum polygaloides  Meisn.  ssp. confertiflorum  (Nutt. ex Piper) J. C. Hickman
Dense knotweed,   Fruitleaf knotweed
Polygonum polygaloides ssp. confertiflorum, a dicot, is an annual herb that is native to California, and also found elsewhere in western North America.

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]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 07/01/2022).