The NWIPC's 12 Most Unwanted Weeds

Common tansy view details	Diffuse knapweed view details	Field scabious view details	Giant and Japanese knotweeds view details
Hound’s-tongue view details	Leafy spurge view details	Marsh plume thistle view details	Orange hawkweed view details
Scentless chamomile view details	Scotch broom view details	Spotted knapweed view details	Yellow hawkweeds view details

Northwest Invasive Plant Council
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