California Native Plant Link Exchange
PLANT INFORMATION

Polygonum cuspidatum - Japanese knotweed

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Lifeform:
Perennial herb 		Family:
Polygonaceae 		Not Native
What plants grow with Polygonum cuspidatum ?

Plant Communities:
escaped cultivar

Synonyms:
Fallopia japonica
Pleuropterus cuspidatus
Pleuropterus zuccarinii
Polygonum cuspidatum var. compactum
Polygonum zuccarinii
Reynoutria japonica

Distribution

Counties:
Alameda
Butte
Contra Costa
Del Norte
Humboldt
Los Angeles
Marin
Mendocino
Nevada
Plumas
Santa Cruz
San Francisco
San Luis Obispo
Shasta
Siskiyou
Sonoma

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