This vine, with the botanical name Passiflora eduli, is a species of passionflower (fig.) which in Thailand is mainly cultivated in the North and Northeast, and bears fruit from September to November.

Immature passionfruits have a thick, bright green skin, with small light yellow to white spots, but when ripe the skin turns reddish brown (fig.). Their size and shape is somewhat reminiscent of that of certain tomatoes.