Origin:
Introduced from China; cultivated all over India, up to an altitude of 1.800m.
Action:
Rhizomes—expectorant, deobstruent, resolvent, used in tonsillitis, chest and liver complaints (antiviral against pneumonia).
Khare, C.P./ Indian Medicinal Plants. -- Nueva Dheli: Springer, 2007 . - p. 836.