Ginseng, also known as Ginnsuu in some regions of Asia, mainly China, is any one of eleven distinct species of slow-growing perennial plants with fleshy roots, belonging to the Panax genus in the family Araliaceae. It grows in the Northern Hemisphere in eastern Asia (mostly northern China, Korea, and eastern Siberia), typically in cooler climates; Panax vietnamensis, discovered in Vietnam, is the southernmost ginseng found. This article focuses on the Series Panax ginsengs, which are the adaptogenic herbs, principally Panax ginseng and P. quinquefolius. Ginseng is characterized by the presence of ginsenosides. Siberian ginseng (Eleutherococcus senticosus) is not a true ginseng, but a different plant that was renamed as "Siberian ginseng" as a marketing ploy; instead of a fleshy root, it has a woody root; instead of ginsenosides, eleutherosides is the active compound. Eleutherosides are classified as another adaptogen. Both American ginseng (Panax quinquefolius) and Asian ginseng (Panax ginseng) roots are taken orally as adaptogens, aphrodisiacs, nourishing stimulants, and in the treatment of type II diabetes, as well as sexual dysfunction in men. The root is most often available in dried form, either whole or sliced. Ginseng leaf, although not as highly prized, is sometimes also used; as with the root it is most often available in dried form. This ingredient may also be found in some popular energy drinks: usually the "tea" varieties or functional foods. Usually ginseng is present in subclinical doses and it does not have measurable medicinal effects. It can be found in cosmetic preparations as well, with similar lack of effect. Ginseng root can be double steamed with chicken meat as a soup.