Kiwano

Cucumis metuliferus, commonly called the African horned cucumber (shortened to horned cucumber), horned melon, spiked melon, jelly melon, or kiwano, is an annual vine in the cucumber and melon family Cucurbitaceae. Its fruit has horn-like spines, hence the name "horned melon". The ripe fruit has orange skin and lime-green, jelly-like flesh. C. metuliferus is native to Southern Africa, in South Africa, Namibia, Botswana, Zambia, Malawi, Zimbabwe, Mozambique, and Angola.