Tengma;Procridis Laevigatae Herba Sources:The drug is the herb of Procris laevigata Bl.(family Convolvulaceae),growing rock under mountainous forest or on big tree,distributed in Fujian,Taiwan,Guangdong,Guangxi,Guizhou,Sichuan,yunnan and Xizang. Actions and Indications:It is used to clear away heat and toxic materials,remove blood stasis and eliminate hematoma,for the treatment of inflammation of soft tissues of unknown origin,burn and scald,wound and fracture.