African horned cucumber
When it is exported to the U.S., the horned cucumber is often labeled as "blowfish fruit." 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.