Submitter does not have a specimen
Knotweed. Two plants, photo is near the school.
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.
Against the side entrance of Roosevelt HS.
Jacob Rose Institute for Natural Resources
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