Alias: shage, potato, sweet potato

Origin: South China, Mexico, Central and North America. It is widely cultivated in Sichuan, Chongqing and Taiwan Province Province in China.

morphological character

Sweet potato belongs to Leguminosae, a cultivated species that can form tuberous roots, and an annual or perennial twining herbaceous vine. The tuber of cold potato is fat, the meat is white, crisp and juicy, rich in sugar and protein, and also rich in vitamin C. It can be eaten raw or cooked. Rotenone (C23H22O6) is contained in seeds, stems and leaves, which is highly toxic to people and animals and can be made into pesticides such as dichlorvos.

way to eat

Cold potatoes can be eaten raw or fried. Raw food tastes a bit like water chestnut. If cooked, it can be fried with meat.

Nutrition and efficacy

Cold potato is rich in nutrition and contains many elements necessary for human body, such as calcium, iron, zinc, copper and phosphorus. It also has the effects of lowering blood pressure and blood lipid. Like sweet potato, cold potato is also a high-yield crop, and the yield per mu can reach several thousand kilograms or even more than ten thousand kilograms. Therefore, in southern China, cold potato is planted as a major cash crop in some places.