Polygonatum odoratum (Scented Solomon's seal) is a species of flowering plant in the family Asparagaceae, native to Siberia, the Russian Far East, China, Mongolia, Korea and Japan. Polygonatum odoratum is used in traditional Chinese medicine and traditional Korean medicine. Polygonatum is believed to be restorative to mental vitality, especially when the mind has been overworked, overstressed, or is in a state of exhaustion. In Korea, the root of the plant is used to make tea. Polygonatum comes from the Ancient Greek for Many knees, referring to the multiple jointed rhizome. One explanation for the derivation of the common name Solomon's seal is that the roots bear depressions which resemble royal seals. Another is that the cut roots resemble Hebrew characters.