Watermelon, (scientific name: Citrullus lanatus, English: Watermelon), watermelon called "melon of the King", originating in Africa. Turkey-introduced Xinjiang Tang Dynasty, Five Dynasties period. Belongs to the gourd family, there are more seeds. North and south China Jie watermelon cultivation, watermelon is a dicotyledonous flowering plants, plant shaped like vines, leaves are feathery. It is the fruit of gourd fruit, melons Cucurbitaceae peculiar kind of fleshy fruit is determined by three heart leather with side membrane placenta inferior ovary developed from fake fruit. Watermelon main edible part of the developed placenta. Fruit skin is smooth, green or yellow, juicy fruit flesh is red or yellow, rare white flesh. Cold watermelon, sweet taste; it has Qingre, thirst, urination Chufan effect; help cure mediastinoscopy gas obstruct, stuffiness uncomfortable urination, nose and mouth sores, heat, heat stroke, the solution alcohol poisoning embolism. Paper can also cook, medicine and so on.