I believe this vine grows small blue or red berries in the summer. We live in southern Atlantic Florida.

To me it looks like a wild grape vine. I have one growing as a privacy screen.
Someone will be along in a minute to give you a more accurate answer.

with you greene. I have those rambling through my sweet viburnum hedge. We never see any fruit, though. The birds get it all.

Looks like Vitis rotundifolia but I will certainly defer to those who are familiar with Florida flora.

That's probably it, Lori. Around here they are known (in a nasal twang) as 'them dang scuppernongs' or something similar. If you can tame them and actually manage to get some fruit, they don't taste bad, but they're very seedy and as I said above, the birds love them.

wild muscadine not sure that I spelled that right.

Scuppernong is the bronze-color fruiting type of muscadine, if I am correct. We have both growing wild here in Savannah.

Muscadine - Vitis rotundifolia Muscadine (Vitis rotundifolia)

I agree, definitely Vitis and probably Muscadine (Vitis rotundifolia) I live in Daytona Beach and it's abundant here.

katbird, to ATP! I also agree with the consensus here...Very abundant in the Jacksonville area too!

I agree as well. I have it growing on my railing and a lot of other places. I didn't plant it there, the previous owners did.

from the Florida panhandle. I have it here as well.

Thanks everyone for your input!