Originally reported as Knotweed (unknown species) (Fallopia sp.)
Submitter does not have a specimen
I found several patches of Japanese knotweed in my alley. I trashed it before finding out about this report feature, but I'm nearly certain of the identification.
There were 2 small patches about 1-2 feet in diameter in the alley, and my neighbor at 8710 found several more patches in her yard.