Origin
Japan, China and Cochin China.
Action:
Tubers—used as alterative in venereal diseases, chronic skin diseases and rheumatic affections. Used as official sarsaparilla. (China of homoeopathic medicine is Peruvian bark, not Smilax china.)
Khare, C.P./ Indian Medicinal Plants. -- Nueva Dheli: Springer, 2007 . - p 609.