Producing area : Hillside, mountain valley, edge of forest.Produces in HuLunBeiEr ,Inner Mongolia and MoHe ,DaXingAnLing Of HeiLongJIang. Chemical ingredient : tanacetin, tanacetol A,B, cislongipinane-2,7-dione. Package type: Vacuum plastic bags,2.5kg/bags,10kg/carton,20kg/carton, 25kg/carton.