This thing grows like crazy. It has a deep root system that spreads. Unless I dig out all the roots, it keeps coming back no matter how many times I pull them out. In a week after pulling, they emerge again. The roots system seem to spread and develop horizontally, and then it puts out these shoots that come out and act like a vine, sticking to whatever they can find. I have already pulled out lots of deep, thick, reddish roots that run a few feet in any direction. I can't catch all of them so they keep coming back. I am hoping if I can identify it, I can learn how to control it. Thanks for any help.