These flowers will produce small seeds in pods. The "peanut" of its name is a seed produced at or below ground by this plant's other self-fertile, closed flowers. These seeds are quite edible.
Hog peanut is a vine, although it does not have tendrils, and plays well with others outside of a garden. It scrambles along the ground in the woods, but arrives on the scene quite late, well after most ephemerals have retreated back under the soil. It also contributes as an uncommon, woodland nitrogen fixer.