Japanese Knotweed (Fallopia japonica) on Jun 17, 2018
Submitter does not have a specimen
Description of specimen
One individual.
Commentary
None
Remedy
Oregon State University's Solve Pest Problems page has some great information about how to get rid of knotweeds Solve Pest Problems
This is a tricky weed to manage. Consider reaching out to your local Soil & Water Conservation District for technical advice.
Location
East facing slope near back entrance to TWG
Expert Reviewer
Mrs. Lindsey Wise Oregon Biodiversity Information Center, inr.oregonstate.edu/orbic Oregon iMapInvasives Institute for Natural Resources Portland State University