Yingzhuafeng;Holboelliac Coriaceae Radix Sources:The drug is the root of Holboellia coriacea Diels(family Lardizabalaceae),growing in mountainside,stream side and thin forest in valley with the altitude lower than 800m,distributed in the south of the Basin of the Changjiang River to Shaanxi. Actions and Indications:It is used to expel wind evil and activate blood,for the treatment of pain on tendons and bones due to wind-wetness evil.