Abstract:Yinxingcao(Siphonostegia chinensis) is commonly called Jinzhong Yinchen in the austral parts and Liujinu in the northern parts of our country. Jinzhong Yinehen was first rec rded in Diannan Bencao of the Ming Dynasty and later faultily used as Liujinu in Bencao Ynanshi. Hence, Jinzhong Yinchen should be the official name of this drug.