OBJECTIVETo gain a clear idea of the drug Gualoupi and its adulterants.METHODCollecting data and spot investigating in 30 provinces, cities and autonomous regions in China.RESULTGualoupi used as drug in China consists of 15 species of Trichosanthes, 1 species of Momordica, 1 species of Citrullus and 1 species of Adenia(Passifloraceae).CONCLUSIONThe main commodity is the rind of T. kirilowii or T. rosthornii, and the main adulterant is the rind of T. hupehensis.