Biaocao;Schoenoplecti Triquetis Herba Sources:The drug is the herb of Schoenoplectus triqueter(L.)Palla(family Cyperaceae),growing in damp land closed to lake,river,stream and pond,distributed throughout China except Hainan,Guangdong and Xizang. Actions and Indications:It is used to relieve the gastric disorder and regulate vital energy,for the treatment of indigestion and stagnation of vital energy,hiccup,abdominal flatulence.