While there are several species of wild grape in Texas the Mustang Grape (Vitis mustangensis) is the most common one in the state. The fruit is edible, though quite tangy, so it is best enjoyed as a jam or in baked goods. In the mid-1860s the grapes were fermented into Mustang Wine which was purported to have healing powers. I look forward to them ripening so I can give them a try.