Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on Sep 10, 2026

Originally reported as Knotweed (species unknown) (Fallopia spp.)

Description of specimen

Submitter does not have a specimen
EDRR Status: Local expert notified

Stand of knotweed next to sidewalk, flowering

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

Next to sidewalk between 13221 SW 68th pkwy and the Montage Apartments at 13155 SW 68th Pkwy. Left hand side as you are walking away from 13221 and toward Montage down 68th.

Expert Reviewer

Avatar of Reviewer

Keith Nasman
Tualatin SWCD

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