Comparative Pharmacognostic study of market samples of collected from five different markets of Kerala with the official source plant Jones ex Roxb.

Background: is a very popular Ayurveda herb used in the treatment insomnia, epilepsy, neurosis, hepatoprotective, anticancerous, and analgesic. Characteristic smell is the typical feature of it. As per the Ayurvedic Pharmacopoeia of India and many other classical texts, rhizomes of of the family is the accepted source of the drug.