"Tim923" wrote in message

This weed grows like crazy in upstate NY in Binghamton. Just how
widespread is this weed?

In our area, we call it Japanese Bamboo, our more commonly just
bamboo. It's so hard to get rid of it. It grows right back after
pulling or flattening. Did this plant overpopulate in Japan?

Why do you call it bamboo?
From your pictures I don't think it looks like bamboo at all.
Some dwarf bamboo varieties are invasive but they do not look remotely like
your stuff.
Do you know the scientific name thereof?