New syntaxa of the steppe vegetation from the Middle Volga region

In 2021, field studies of the steppe vegetation of the Middle Volga Region were carried out. Syntaxonomic analysis was carried out using the approach of J. Braun-Blanquet. A new association Artemisio marschallianae-Stipetum borysthenicae ass. nov. was established with subordinate subassociations Artemisio marschallianae-Stipetum borysthenicae typicum subass. nov. and Artemisio marschallianae-Stipetum borysthenicae potentilletosum incanae subass. nov. and variants Artemisio marschallianae-Stipetum borysthenicae potentilletosum incanae subass. nov. var. typica and Artemisio marschallianae-Stipetum borysthenicae potentilletosum incanae subass. nov. var. Potentilla argentea . The syntaxa are assigned to the alliance Festucion valesiacae , order Festucetalia valesiacae and class Festuco-Brometea .