Elemental composition of the aerial part of plants of the genus pycnanthemum michx

These are the results of the study of plants of the genus Pycnanthemum Michx. (Lamiaceae), which were introduced in the M.M. Gryshko National Botanical Garden of the NAS of Ukraine. The characteristics of the soil and climatic conditions of plant growth are given. The quantitative content of 22 chemical elements in the raw materials of plants in the flowering phase is established. It is revealed that some species, in particular P. californicum, P. montanum, P. muticum, are able to accumulate K, Na, Mg to a greater extent than other. Heavy metals Ni and Zn are also found in the raw materials.