Name: John Scott County, KY (Zone 5b) You can't have too many viburnums..
I was going to guess one of the several Asimina sp. that grow in Florida - the Pawpaw genus. They have large whitish flowers, but with the typical Pawpaw three-parted character.
im a day late, and it seems the pod looking things have dropped, but i see a fruit of some kind on another, maybe what becomes the pod thing or vice versa ...