Erbaohuangjing;Polygonati Involucrati Rhizoma Sources:The drug is the dried rhizome of Polygonatum involucratum(Franch. et Sav.) Maxim.(Family Liliaceae),growing under forests or on swampy hillsides,and distributed in Heilongjiang,Jilin,Liaoning,Hebei,Shanxi and Henan of China. Actions and Indications:Rhizome is used as salivator,to invigorate the spleen,for the treatment of the body weakness and acratia,shortness of palpitaiton and breath,weakness of loins and knees,dry cough and diabetes.