油莎豆,亦称油莎草,属莎草科莎草属,是一种多年生植物,在生产上作为一年生作物栽培,主要利用它的地下茎。原产非洲和地中海沿岸国家;1960年,中国科学院植物研究所从保加利亚引进我国。目前,全国已有十六个省(区)进行了栽培,其中,湖北、湖南、广西、河北、辽宁、陕西等省(区)栽培较多。 Oil Shadou, also known as the oilseed sedge, is a sedge of the genus Cyperus, a perennial that is used as an annual crop in production, mainly using its underground stems. Originating in Africa and the Mediterranean countries; In 1960, the Institute of Botany, Chinese Academy of Sciences from Bulgaria to introduce our country. At present, 16 provinces (regions) have been cultivated in the whole country, among which Hubei, Hunan, Guangxi, Hebei, Liaoning and Shaanxi provinces have cultivated more.