Home – Home – Jornals – Flora and Vegetation of Asian Russia 2018 number 1

Flora and vegetation of geological and geomorphological nature sanctuary of Korsak-Bas (Orenburg region) was studied for the first time. The occurrence of 114 vascular plants species in 25 families and in 71 genera was recorded. Seven endangered species included in red lists were noted: Iris pumila , Stipa zalesskii , Tulipa gesneriana are protected at the federal rank; Allium inderiense , Anabasis salsa , Scorzonera tuberosa and Tulipa bifl ora - on regional. Vegetation of Korsak-Bas is presented by 3 communities and 1 association. Low-specific halophyte and petrophyte communities with the considerable proportion of ephemer and annual plants are distributed on a clay, crushed stone slopes with strong insolation ( Anabasis salsa , Atraphaxis replicata-Artemisia lessingiana ). Сommunities of Ferula caspica-Kochia prostrata are a typical for more leveled bottom. Northern slopes are occupied by herb feather-grass steppes of Amorio montanae-Stipetum rubentis association. Vegetation of Korsak-Bas represents the southern modification of dry steppes and their saline variants, distributed in adjacent arid regions of Northern Kazakhstan.