Wisteria ("Wisteria spp.) Is a hearty vine that has edible flowers. They are the ONLY part of the plant that's edible--avoid the leaves, seeds & root. I eat the flowers raw as the purple ones lose their color when heated. They can be separated from their stems & frittered or mixed into pancake batter--for that i'd use the white ones but purple can be used too (but with a loss of their color.)