Not to further confuse, but Stylophorum is rather rare in that part of the Chicago region. Chelidonium majus looks very much a smaller version of Stylophorum diphyllum. While I can't tell which it is by the photo, you can separate them easily once they fruit shortly after flowering. Chelidonium majus has a long, smooth fruit with no style while Stylophorum diphyllum has a shorter, bristly fruit with a long style.

Epipactis helleborine, a non-native orchid that has naturalized in N. America. Here is a link that might be useful: Epipactis

Yup that is a Coleus, I planted that one myself :) I was referring to the one towards its left

Thanks. Guess I'll just let it be through the winter and see what happens in the spring. It's been growing since Feb/March ish with no flowers. Other coreopsis in that bed bloom and reseed with abandon. They bloomed like crazy, went to seed and died back months ago but these haven't done anything. It doesn't bother me to let them be for now. I just didn't want something that was definitely and invasive weed and take over the bed.