Taxon  Report   8417 
Polygonum polygaloides  Meissner
Milkwort knotweed
Polygonum polygaloides
© 2008 Keir Morse
Click on a photo to see it bigger.
Polygonum polygaloides
© 2006 Debra Valov
Polygonum polygaloides
© 2012 Jean Pawek
Polygonum polygaloides, a dicot, is an annual herb that is native to California and is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Polygonum polygaloides
© 2009 Keir Morse
Distribution by County 

Add an Observation of  Polygonum polygaloides

Name Status:
Accepted by TJM2 + PLANTS + JM93
More information about  Polygonum polygaloides
Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

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]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Oct 25, 2016).

The information on this page comes from diverse sources. None of the links are sponsored.