This is Passiflora auriculata. This is one of the most unusual looking flowers from the Passiflora family. It is a favorite of the butterflies, bees, ants, and several other nectar gathering insects. The small black fruit from this plant are edible. This is a host plant for the Zebra Long Wing, Zebra Heliconian, Julia Heliconian, Isabellas Heliconian, Banded Orange Heliconian, Mexican Fritillary, Scarce Bamboo Page, Erato Heliconian, Variegated Fritillary, and Gulf Fritillary butterflies. It is also a larval host plant for the Plebeian sphinx Moth. USDA Hardiness Zones 10 to 11