Japanese knotweed, Fallopia japonica

"Will you walk into my parlour, said the spider to the fly, tis the prettiest little parlour that ever you did spy." Mary Howitt, 1829.
And here's what happens next! Japanese knotweed is certainly pretty. It grows in large clones, as tall as we are. Around this time of year, or a little earlier, masses of these small flowers appear. Right now it's harder to complain about it, but it is kind of invasive. But there are probably more efficient ways to get rid of flies. Japanese knotweed has been reported in every state except AL, AZ, FL, HI, ND, NM, NV, TX, and WY, from BC, MB, NB, NF, NS, ON, PE, and QC, and from SPM. Lenawee Co MI,