What is this thing?
Had about 6 of these pop up in various spots around the yard. They shoot up about from root to 6' to 8' in about 3 weeks, then start filling out. Racemes of small white flowers that almost look like a wild cherry, This is the first one I've managed to get out with a portion of the roots, so I'm expecting them back next year.The stalks are hollow (almost like bamboo, but they don't have the rings that bamboo has). The stalk is brownish-red near the bottom with light vertical striations, and green near the tips. They hold a lot of liquid. Thoughts?