Submitter does not have a specimen
EDRR Status: Local expert notified
For sure this is knotweed! I work for Tualatin SWCD.
See this site for tips on how to control knotweed:
* Controlling Knotweed in the Pacific Northwest
Want to join forces with your community to fight invasives? There are lots of people involved in this effort already! The links below can connect you with opportunities:
Western Invasives Network
Association of Conservation Districts
The Nature Conservancy of Oregon
End of street before the turn around on the left as well as down to the water and behind the fenced utility.
Samuel Leininger Clackamas Soil and Water Conservation District4-County Cooperative Weed Management AreaColumbia Gorge Cooperative Weed Management AreaPacific Northwest Invasive Plants Council
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