Taxon  Report   10752    
Aconogonon davisiae  (W. H. Brewer ex A. Gray) Sojâk
Davis knotweed
Aconogonon davisiae
© 2010 Keir Morse
Photos from
CalPhotos / Calflora
Aconogonon davisiae
© 2010 Keir Morse
Aconogonon davisiae
© 2010 Keir Morse
Aconogonon 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.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Aconogonon davisiae
© 2017 Sheri Hagwood
Genus: Aconogonon
Communities: Red Fir Forest, Lodgepole Forest, Subalpine Forest
Name Status:
Accepted by JEF

PLANTS accepted name:
Polygonum davisiae

Alternate Names:
ICPN: Aconogonon davisiae var. glabrum
ICPN: Polygonum davisiae
ICPN: Aconogonon davisiae var. davisiae
More information about  Aconogonon davisiae
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

Search (Flora of North America)

website references from Google

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: Jan 23, 2019).