Taxon  Report   11033 
Polygonum austiniae  Greene
Rebecca austin's knotweed
Polygonum austiniae, 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
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Plant Characteristics
and Associations



Bloom Period
Family: POLYGONACEAE  
Genus: Polygonum
Wetlands:Usually occurs in non wetlands, but occasionally found in wetlands [U.S. Fish & Wildlife Service.]
Distribution by County 

Add an Observation of  Polygonum austiniae

Name Status:
Accepted by TJM2
Alternate Names:
(according to)

TJM2: Polygonum douglasii ssp. austiniae
More information about  Polygonum austiniae
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (PODOA2)

Search efloras.org (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: http://www.calflora.org/   (Accessed: Aug 27, 2016).

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