I realize now that this is not the best picture, but it is still dark out, so I can't take another right now.

This plant has fuzzy leaves like garlic mustard, or similar to my raspberry plant. They are serrated, but not pointy on the edges. The leaves are alternating. No flowers. (The purple flowers are from a cranesbill planted underneath).

I think I already may have removed this once and now it is growing back...