Abstract:The results of bencaological studies on Curcuma species showed that Yujin rccorded beforethe end of Ming dynasty was the tuber of Curcuma longa and Jianghuang and Ezhu have beenconfused for a long time.The main original plants of the former are C.aromatica and C,wen-yujin featuring yellow tuber,and those of the latter are C.kwangsinensis.