Taxon  Report   6747    
Polygonum davisiae  W. H. Brewer ex A. Gray  
(no longer an active name)
Davis knotweed,  Davis' knotweed
Polygonum davisiae, a dicot, is a perennial herb that is native to California, is also found outside of California, but is confined to western North America.

Bloom Period
Genus: Polygonum
Communities: Red Fir Forest, Lodgepole Forest, Subalpine Forest
Name Status:
Accepted by PLANTS

JEF other name:
Aconogonon davisiae

Alternate Names:
PLANTS: Aconogonon davisiae
PLANTS: Aconogonum davisiae var. glabrum
PLANTS: Aconogonum davisiae
. . .
NOTE: Polygonum davisiae is no longer an active name.
More information about  Polygonum davisiae
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Nov 21, 2019).