Naturalized. Probably from an original planting. Several plants.
Super tall - at least 7 ft, with leaves about 1 foot long (see my hand). I've seen it a couple of times from Nov 2019 to February 2020, but I've seen no evidence of anything but leaves -- no flowers, berries, etc. Leaves have fallen off; a little when I first saw it in November, and more in January. Stem appears fuzzy, and leaves have deep veining (see photos).
Volunteer plant in my yard. Nightshade tree of some sort? Potato tree?