Taxon  Report   11039 
Polygonum sawatchense  Small
Polygonum sawatchense
© 2012 Dean Wm. Taylor. Ph. D.
Click on a photo to see it bigger.
Polygonum sawatchense
© 2009 Barry Breckling
Polygonum sawatchense, a dicot, is an annual herb that is native to California.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

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Plant Characteristics
and Associations

Bloom Period
Polygonum sawatchense
© 2009 Barry Breckling
Wetlands: Occurs usually in non wetlands, occasionally in wetlands
Distribution by County 

Add an Observation of  Polygonum sawatchense

Name Status:
Accepted by TJM2
PLANTS accepted name: Polygonum douglasii ssp. johnstonii
More information about  Polygonum sawatchense
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos and ID tips from

Jepson eFlora

Records from the Consortium of California Herbaria


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]. 2017. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Nov 20, 2017).

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