Distribution of Plant Species by Floristic Regions of the Argun River Basin

The article is devoted to the flora of the Argun River basin within the Chechen Republic. One of the important areas of floristic research is solving the issue of the position of the flora under study in botanical-geographical zoning systems developed for a particular territory, in particular, for the territory of the republics of the Eastern Caucasus and the Northern Caucasus. Botanical-geographical zoning is based not only on quantitative indicators, but also on the composition of floristic complexes of a given territory, mostly on the localization of habitats of endemic and relict species, which give this or that complex originality. As a result of the analysis, a fractional zoning of the territory occupied by various phytocenoses was carried out for the first time, identifying 6 botanical-geographical regions.