Plant or Weed?
Looks like you have common ragweed, Ambrosia artemisiifolia. Just dig it up and discard it or compost it before it sets seeds. Some folks have a skin sensitivity to this weed so, wear gloves and long sleeves.
I agree with you, it looks like a marigold when young! Here are details on ragweed-
thank you so so very much for the quick response. I so appreciate that you share your knowledge!!!
You are very welcome- we are plant 'geeks' and we learn from your queries, too! ;)