Polygonum aviculare Calflora

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Taxon Report

Polygonum aviculare L.

Prostrate knotweed

Polygonum aviculare is an annual or perennial herb that is not native to California.


	Plant Range Observation Search ~1905 records in California Plant Characteristics

Bloom Period

Photos on Calflora


Subspecies and Varieties:
... ssp. aviculare ... ssp. buxiforme ... ssp. depressum ... ssp. neglectum ... ssp. rurivagum
Genus:	Polygonum
Family:	Polygonaceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Wetlands: Equally likely to occur in wetlands and non wetlands

Habitat: disturbed

Communities: wetland-riparian, weed, characteristic of disturbed places

Name Status:
Accepted by JEF + PLANTS + POWO

Alternate Names:


PLANTS	Polygonum aviculare var. vegetum
PLANTS	Polygonum heterophyllum
PLANTS	Polygonum monspeliense

Information about Polygonum aviculare from other sources


Jepson eFlora USDA PLANTS Profile (POAV) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist	International Plants Names Index Search efloras.org (Flora of North America) BONAP Distribution Map Consortium of California Herbaria 2	Add an Observation Location Suitability 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: 03/29/2025).