Douglas's Knotweed Polygonum douglasii GreenNon-native    
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Caryophyllales   >   Family Polygonaceae   >   Genus Polygonum   

Status:

"Quebec to British Columbia, south to New England, northern New York, northern Michigan, Minnesota, Oklahoma, New Mexico and California" (Reed, 1964).

There is 1 record in the project database.

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