velvetleaf. It's the one I have written about that is a great trap crop for leafminers.
One year I planted some mixed wildflower seeds. This was in it and it is the only one that still comes back. It is a little weedy, but not seriously aggressive and I always leave some to be the trap crop and to set seed for next year.
Thanks for posting this. In Wisconsin, Illinois, and Indiana I often see this plant sprout up before any others in vacant lots and other open areas and have often wondered what it was. Good to know, thanks.