Producing area: In hillside weed-tree, forest, the banks of river brook, edge of forest.Produces in HuLunBeiEr,Inner Mongolia and DaXingAnLing,HeiLongJIang. Chemical ingredient : hyperin, nonacosane, -sitosterol. Packing type: Vacuum plastic bags,2.5kg/bags,10kg/carton,20kg/carton, 25kg/carton.