Hairy vetch

Hairy vetch （also be called as sand vetch, winter vetch, hairy-pod vetch）is a hardy, viny, annual or biennial legume. North of europe is the origin habitat of hairy vetch,it is mainly planted along the Yellow River, Huaihe River and Haihe River in China. Hairy vetch has a long cultivation history, and is cultivated widely in Henan, Anhui, Sichuan, Shanxi and Gansu province of China. Among which Xinyang area is the original habitat and centralized producing area of hairy vetch in Henan province. The Xinyang hairy vetch is the long-term cultural farm plant, which had history of more than one thousand years under the unique transition natural climatic conditions of northern subtropics. In the 1980s exported to Japan, in the 90s exported to South Korea.