What is "passiflora incarnata"

Maypop \May"pop\, n. [Perh. corrupt. fr. maracock.] (Bot.) The edible fruit of a passion flower, especially that of the North American Passiflora incarnata, an oval yellowish berry as large as a small apple.

Passiflora incarnata, commonly known as maypop, purple passionflower, true passionflower, wild apricot, and wild passion vine, 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. The Cherokee in the Tennessee area called it ; the Ocoee River and valley are named after this plant, which is the Tennessee state wildflower. This, and other passionflowers are the exclusive larval host plants for the gulf fritillary and non-exclusive for the variegated fritillary butterflies.