The article presents the results of the study of morphometric and physiological parameters of the leaves of the woody plant-chestnut oak (Quercus castaneifolia S. A. Mey.). The study was conducted in Baku, which is the capital of the Republic of Azerbaijan, to assess the bioindicative properties and prospects of using this plant in environmental monitoring and landscaping of the city. To conduct a comparative analysis of the results, leaf samples were collected in the areas of the city that differ in the degree of environmental pollution.
