Black-skinned wax gourd is a kind of wax gourd, named after its dark green appearance. Wax gourd originated in China and is a common food on people's table. Wax gourd: a cultivated species of the genus Wax gourd in Cucurbitaceae, an annual climbing herb. The scientific name is Be-nincas ahispida Cogn. In ancient times, it was called white melon, Shuizhi, pillow melon, and greasy food. Chromosome number 2n=2x=24. Fruits are used for food, and tender stems and leaves are also eaten in some parts of Southeast Asia. Seeds and exocarp can be used as medicine. Traditional Chinese medicine believes that winter melon seeds are effective for intestinal carbuncle, lung carbuncle and urinary stranguria. Exocarp is used to treat edema. Every 100g of fruit contains 95-97g of water, 0/.4-2.4g of carbohydrate and 0/8mg of vitamin C8-/kloc-.