Polygonum douglasii ssp. spergulariiforme Calflora

Calflora, a 501c3 non-profit

Taxon Report

Polygonum douglasii Greene ssp. spergulariiforme (Meisn. ex Small) J. C. Hickman

(not an active name)

Scatter knotweed, Spurge knotweed, Spurry knotweed

Polygonum douglasii ssp. spergulariiforme is an annual herb that is native to California, and also found elsewhere in western North America.

also called Polygonum spergulariiforme


	Plant Range Observation Search ~200 records in California Plant Characteristics

Bloom Period

Photos on Calflora


Parent:	Polygonum douglasii
Genus:	Polygonum
Family:	Polygonaceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: slopes

Communities: Yellow Pine Forest, Chaparral, Coastal Prairie

Name Status:
Accepted by PLANTS

Alternate Names:


PLANTS	Polygonum spergulariiforme
JEF	Polygonum spergulariiforme

Information about Polygonum douglasii ssp. spergulariiforme from other sources


Nursery availability from CNPLX Commercial availability unknown. USDA PLANTS Profile (PODOS2) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist ID Tips on PlantID.net	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape BONAP Distribution Map Consortium of California Herbaria 2 Search the Native American Ethnobotany Database	Add an Observation Location Suitability Planting Guide Distribution by County
photos / record / common / links

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 05/08/2025).