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Polygonum cuspidatum

Naming
Scientific name: 
Polygonum cuspidatum
Primary Common name: 
Japanese knotweed
Characteristics
Species Category: 
woody
Current Extent: 
limited
Likelihood of Introduction: 
n/a (already in CA)
TSN: 
20889
References
Sources: 
CDFA Noxious Weed List
California Invasive Plant Inventory (Cal-IPC List)
Oregon Noxious Weed List
Washington Noxious Weed List