African horned cucumber
When it is exported to the U.S., the horned cucumber is often labeled as "blowfish fruit" or a kiwano melon. With its spiky yellow exterior and juicy green interior, this is one fruit with vibrant contrasts. It tastes like a cross between a cucumber and a zucchini, and it is rich in both vitamin C and fiber. Native to Africa, it has been exported and cultivated as far away as New Zealand, Australia and Chile.