Cucumis metuliferus

About

Cucumis metuliferus, also known as the African 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, soft flesh. Cucumis metuliferus is native to Southern Africa, in South Africa, Namibia, Botswana, Zambia, Malawi, Zimbabwe, Mozambique, and Angola.

Summary from Wikipedia