Over the past century, the study of aquatic plants has expanded greatly due to the increased recognition of their importance in fundamental systemic processes. Lake Zhalanashkol belongs to the soda lake type, as it is characterized by a unique chemical composition of water. Also, recently the anthropogenic contribution has increased due to the development of recreational activities in the nearby territory of the lake, therefore, the relevance and importance of studying the flora of Zhalanashkol

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... lake in Almaty region is beyond any doubts. The purpose of this article was to perform a systematic analysis of higher and semi-aquatic plants of Zhalanashkol soda lake in Almaty region. It should be noted that at present, much more attention is being paid to the study of higher and semi-aquatic plants due to their wide practical significance. Higher aquatic plants perform the following functions in ponds: filtrative, absorptive, storaging, oxidizing, detoxifying. Also, this kind of plant is used as a raw material for paper, medicine and perfume industries, building materials and fertilizers. Field (expeditionary) and route-reconnaissance research methods were used to perform the research. As a result of the research, 46 species of higher and semi-aquatic plants belonging to 21 families and 43 genera were identified within Zhalanashkol lake flora. The floristic spectrum of the study area showed that the floral core is represented by angiosperms, and the minor part is represented by gymnosperms. 10 leading families of the study area include 34 species, which is 73.91% of the total number of identified species. Thus, the species identification process of semi-aquatic vegetation makes it possible to characterize the ecological state of the ecosystem in detail. Nowadays, water analysis is commonly performed with the help of biological indicators, and is widely used in the practice of hydrobiological research.