Maxim.) and over 70 species containing many medicinally important herbs. The big part -40 species, belongs to Elsholtzia Willd. genus 1 . They have been widely distributed and applied in East Asia, Africa, North America, and European countries for centuries, but mainly distributed in southeast and south Asia. Elsholtzia is an economically important plant group. In India and China Elsholtzia species are used in traditional and officinal medicines for the treatment of colds, headaches, pharyngitis, fever, diarrhea, digestion disorder, rheumatic arthritis, nephritises, and nyctalopia 2 . Also, in Asia Elsholtzia plants are used for herbal tea, food, spices, beverages, perfumeries, cosmetics, aromatherapies, and the source of honey manufacture 3 . The flora of Ukraine numbers only one species that grows as wild plant (Elsholtzia ciliate), and two more species are cultivated (Elsholtzia stauntonii and Elsholtzia densa) 4 .Elsholtzia is by far the most morphologically diverse genus in the tribe, especially in terms of habit (herbs, subshrubs or shrubs), verticillasters in continuous or interrupted spikes (cylindric or secund, often compact or panicles), shape of the bract (lanceolate, subulate or linear), shape of the calyx (campanulate or cylindric), corolla color (white, yellowish or purplish) and shape of the nutlet (ovate to oblong) 1,5 . Despite the fact that plants of the genus Elsholtzia Willd. are very different by morphological features, they have a similar range of biologically active substances 6,7 .According to the literature Elsholtzia plants have a wide range of biological effects: antibacterial, antifungal, antispasmodic, antipyretic, antiinflammatory, analgesic, diuretic and carminative properties. Chinese Vietnamese Balm essential oils are also used in cancer treatment 8,9 . Therefore the genus Elsholtzia recently attracts attention of many researchers.The aim of this work was to establish the anatomical differences between of two species of the genus Elsholtzia Willd. of flora of Ukraine.
