Land Plants - invasive

Japanese Knotweed (Fallopia japonica) on Nov 20, 2021

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

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

Description of specimen

Empty lot full of italian arum and knotweed, and both populations seem to be healthy and spreading. Looks like a bad time. Its not my lot, I just happened to walk past it. :( Thank you!