Biodiversity of ravine flora of the northeastern part of the Lesser Caucasus

As a result of the study of the areas, the geographical features of the ravine flora were studied. The flora is grouped by geographical elements according to the existing scheme of geographical elements. Geographical analysis shows that pontic and nemoral geoelements are dominated by Eurasian, European, and ancient Mediterranean areas. Nemoral and pontic geoelements cover all areal types. Cosmopolitans dominate. It should be pointed out that as a result of human economic activity, the species composition in the ravines has decreased sharply. Ravines occupy an important place in the formation of the vegetation of the north-east of the Lesser Caucasus and play the role of soil protection and water protection. Systematic, biomorphological, ecological cenotic, geographical analysis shows that the ravine flora is similar to the zonal flora of the meadow steppe system, but at the same time has its own characteristics. It is heterogeneous in species composition. One of the peculiarities of the flora is the predominance of weeds, forest vegetation and migrants.