The herb and the root of purple coneflower, the root of pale coneflower as well as narrowleaved coneflower have a very well-documented immunostimulating activity. Among the other medicinal plants influencing the immune system there are also the herb of pale coneflower, the leaf of Aloe arborescens and the mistletoe herb. Both macromolecular compounds such as glycoproteins and polysaccharides and the micromolecular derivatives of caffeic acid, alkamides and unsaturated alkyl ketones, are listed among active immunostimulators. Key words: herbal medicine, immunity