Well, it's not virginia creeper, and I don't think it's Ampelopsis brevipedunculata (Ampelopsis heterophylla), what "grape" could it be?
looks like a muscadine leaf or scufidine. cant tell wjich one until the grapes mature.
it grows wild here and in many other places.
I never get to see any grapes because the japanese beetles always dessimate it before any get a chance to form.
The vines this plant makes are wonderful and thick. I have to remember to cut some to make perches for my birds.
Hey, that looks like it! I even saw some of the begining fruits on a vine. Maybe this year I'll finally be able to harvest some grapes!