Taxon  Report   11040 
Polygonum spergulariiforme  Meisn. ex Small
Spurry knotweed
Polygonum spergulariiforme
© 2008 Sierra Pacific Industries
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Polygonum spergulariiforme
© 2008 Sierra Pacific Industries
Polygonum spergulariiforme
© 2008 Sierra Pacific Industries
Polygonum spergulariiforme, 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 spergulariiforme
© 2008 Sierra Pacific Industries
Family: POLYGONACEAE  
Genus: Polygonum
Communities:
Yellow Pine Forest, Chaparral, Coastal Prairie
Habitat: slopes [Walker]
Wetlands:Usually occurs in non wetlands, but occasionally found in wetlands [U.S. Fish & Wildlife Service.]
AFFINITY to serpentine soil:   3 (strong indicator)   [Safford et al 2005]
Distribution by County 

Add an Observation of  Polygonum spergulariiforme

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

TJM2: Polygonum douglasii ssp. spergulariiforme
More information about  Polygonum spergulariiforme
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 (PODOS2)

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 28, 2016).

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