Cactaceae

Genus: Hylocereus
Species: undatus
Author: (Haw.) Britton & Rose
Elevation: Up to 2000m
Avg. Height: 4m

Source: http://tropical.theferns.info/viewtropical.php?id=Hylocereus+undatus
Photo Source: http://tropical.theferns.info/image.php?id=Hylocereus+undatus