西洋参(花旗参),原产北美洲山林里,美国和加拿大都有野生和家植品种。西洋参是五加科人参属多年生宿根草本植物,根纺锤形具分枝,掌状复叶五出,3～4枚轮生。小叶片广卵形或倒卵形,叶缘粗锯齿状深裂。花梗由茎端叶柄中央抽出且稍长于叶柄。伞形花序,五瓣五片,绿白色,浆果熟时鲜红色(如图)。 American ginseng (American ginseng), originating in the mountains of North America, the United States and Canada have wild and home-grown varieties. American ginseng is a ginseng Perennial perennial herb, root spindles with branches, palmate compound leaf five, 3 to 4 whorled. Small leaf blade broadly ovate or obovate, leaf margin coarse serrated deep cleft. Pedicel central from the stem petiole and slightly longer than the petiole. Umbels, five five, green and white, berry cooked bright red (pictured).