Fishy grass is a specialty of Guanghan City, Sichuan and other places. Fishweed is mainly produced in China's Yangtze River Basin south of the provinces, as early as in the late 1980s, Guanghan City, Sichuan GaoPing town will be introduced into the field after the large-scale planting, has now been developed to the surrounding townships, with nearly 10,000 acres of planting area, the formation of our country's largest planting base of folded ear root.