This is Passiflora suberosa, also known as Cork-bark Passion Flower, Devils Pumpkin, Indigo Berry, Corky Passionflower, and Corkstem Passionflower. This is a host plant for the Glasswing, Zebra Long Wing, Zebra Heliconian, Julia Heliconian, Isabellas Heliconian, Mexican silverspot, Banded Orange Heliconian, Mexican Fritillary, Scarce Bamboo Page, Erato Heliconian, Variegated Fritillary, and Gulf Fritillary butterflies. This plant has edible fruit but it is small and packed with seeds, so it is a great deal of work for a small amount of fruit. USDA Hardiness Zones 8 to 11