Polygonatum sibiricum, also known as tiger ginger and cockscomb ginseng. It is the dried rhizome of Polygonatum yunnanense. , Huang Jinghong. Or Polygonatum multiflorum. Liliaceae. According to the difference of original plants and medicinal materials, Polygonatum sibiricum can be divided into three kinds: Polygonatum sibiricum, Polygonatum sibiricum and rhubarb essence. The original plant of Polygonatum sibiricum is Polygonatum multiflorum, Polygonatum sibiricum is Polygonatum sibiricum, and the original plant of rhubarb essence (also known as Polygonatum cirrhotum) is Polygonatum yunnanense. Among the three, the quality of Rhizoma Polygonati is the best.

Dioscorea zingiberensis, also known as Dioscorea zingiberensis, is a perennial herb of Dioscorea. Dioscorea is the species with the highest content of diosgenin in the world. According to China Pharmacopoeia (2000 edition), the content of diosgenin (commonly known as saponin) in its rhizome is1.1~16.15%, which is a synthetic steroid hormone.