Panax vietnamensis or Vietnamese ginseng (Vietnamese: Sâm Ngọc Linh) is a species of the ginseng genus Panax. In Vietnam the species, prized in herbal medicine, is commercially very valuable and now considered threatened.
Panax vietnamensis is a perennial plant, growing from 40 centimetres (16 in) to 1 metre (3 ft 3 in) tall. It may be distinguished from other ginseng species by the notches on its roots.
In Vietnam, P. vietnamensis is found primarily in the Mount Ngọc Linh area of Kon Tum and Quảng ...