Submitter does not have a specimen
EDRR Status: Population assessed
10-15 foot tall, spade shaped leaves, stems somewhat resemble bamboo.
Identify and manage knotweeds in the Pacific Northwest
Many areas of infestation in the park, near the river
Samuel Leininger Clackamas Soil and Water Conservation District4-County Cooperative Weed Management AreaColumbia Gorge Cooperative Weed Management Area
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