Polygonum californicum Calflora

Calflora

Taxon Report 6743

Polygonum californicum Meisn.

California knotweed

2015 John Doyen

2020 David popp

2004 Steve Matson

2015 John Doyen

Polygonum californicum, a dicot, is an annual herb that is native to California, and also found elsewhere in western North America.


	Plant Range Observation Search (209 records) Plant Characteristics

Bloom Period

Photos from Calflora / CalPhotos


Family:	Polygonaceae
Genus:	Polygonum

Communities: Yellow Pine Forest, Northern Oak Woodland, Foothill Woodland

Name Status:
Accepted by JEF + PLANTS

Alternate Names:


PLANTS	Polygonum greenii

More information about Polygonum californicum


Nursery availability from CNPLX Commercial availability unknown. Jepson eFlora USDA PLANTS Profile (POCA7) BONAP Distribution Map	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape Photos on PlantID.net / Google Images Consortium of California Herbaria 2	Add an Observation Location Suitability Planting Guide Distribution by County
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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]. 2021. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 06/23/2021).