Calflora: Polygonum douglasii ssp. spergulariiforme

Taxon Report 6753

Polygonum douglasii E. Greene ssp. spergulariiforme (Meissner) J. Hickman (not an active name; please see Polygonum spergulariiforme)

Scatter knotweed, Spurge knotweed, Spurry knotweed

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Polygonum douglasii ssp. 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

Family:	POLYGONACEAE
Genus:	Polygonum
Parent Record	Polygonum douglasii

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 douglasii ssp. spergulariiforme

Name Status:

Accepted by PLANTS + JM93
TJM2 accepted name:	Polygonum spergulariiforme

Alternate Names:
(according to)

PLANTS:

Polygonum spergulariiforme

NOTE: Polygonum douglasii ssp. spergulariiforme is not an active name in the Calflora species table.

More information about Polygonum douglasii ssp. spergulariiforme


	Location Suitability Nursery / seed vendor availability from CNPLX Commercial availability unknown. Landscaping information from Calscape Photos on CalPhotos / Google Images		Records from the Consortium of California Herbaria Original Publication citation (ITIS) USDA PLANTS Profile (PODOS2)		Search the International Plants Names Index 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]. 2017. Berkeley, California: The Calflora Database [a non-profit organization].
Available: http://www.calflora.org/ (Accessed: Jul 14, 2017).

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