@plantladylin. Good morning Lin, thank you for looking. After inspecting several Boneset pics, I think the leaves look slightly different (shape & veins.) So close though....Any more thoughts? I tried the plant ID app I have back in the summer and had no luck. Maybe they've developed better apps by now. I'm not going to pull it - curious to see if it sets seed over the winter. I might move it though....the Boneset is apparently most commonly found around wet marshy areas with some shade. The location where I found this plant is normally quite dry, in un-amended clay and in full Sun. So that was another reason I thought maybe this isn't Boneset.
Maybe
@Stone can help?