Hailing from New Zealand, this oval fruit ranges in length from 3 to 5 inches. It has a bright yellow skin studded with stubby "horns," which is why it's also called a horned melon. The kiwano's pulp is a pale yellow-green color and jellylike in texture with a sweet-tart flavor evocative of bananas and cucumbers. Kiwanos can sometimes be found in specialty produce markets.