Breaking news. Mystery plant:
has been identified.
Now that it is more than some green leaves, it reveals itself to be nothing more than good old pokeweed.
It did, however, allow me the pleasure of finding a recording of the old song, Polk Salad Annie by Tony Joe White (yes, the song is "Polk", plant is "poke") to play for Jason, who didn't quite believe me when I sang a bit of it to him.
Like I could make such stuff up.
Gators got your granny, indeed.