Ginseng is a plant notable for its healing properties, and its long time association with some of the world's most ancient healing traditions. There are two varieties of ginseng that are the most commonly used medicinally: Asian ginseng (Panax ginseng), which is native to Manchuria and Korea, and has a long history of medicinal use (in tea and drug form) in China, Korea, and Japan. American ginseng (Panax quinquefolius) grows throughout the US and parts of Canada, from Quebec and Manitoba to the coasts of the Gulf of Mexico. It is also used as a traditional medicine, but the bulk of the crop is dried and exported to Hong Kong, where it is processed into a spice used throughout Southeast Asia.