Submitter does not have a specimen
EDRR Status: Local expert notified
Large swath - getting bigger every year.
Identification and management of Purple Loosestrife from Oregon Dept. of Agriculture.
Purple loosestrife information from OregonFlora.
Willamette river area next to a public access in West Linn.
Samuel Leininger Clackamas Soil and Water Conservation District4-County Cooperative Weed Management AreaColumbia Gorge Cooperative Weed Management Area
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