info3 at SnowLotusBiotech dot com The products is mainly used in the manufacture of pharmaceutical and health products. It grows on the hill, under trees, and the edge of hurst . Its producing area is DaXingAnLing of HeiLongJiang . Chemical ingredient : saponin ,vanillin,and ethylvanillin included in the tuber , coumarin and minim alkaloid included in the terrestrial stem.