Purple Passionflower a.k.a "Maypop" (Passiflora incarnata)

"Passiflora incarnata" is a fast-growing perennial vine with climbing or trailing stems. A member of the passionflower genus "Passiflora", the maypop has large, intricate flowers with prominent styles and stamens. One of the hardiest species of passionflower, it is a common wildflower in the southern United States.