For the first time on the north-east of Malozemelskaya tundra at the coast of the Barents Sea the following 5 associations — Puccinellietum phryganodis Hadač 1946 (with subassociations inops Thannheiser, Willers 1988 ex Hofmann 1969 and caricetosum subspatheceае Thannheiser, Willers 1988 nom. nud).; Caricetum subspathaceae Hadač 1946 with subass. Inops Molenaar 1974 and arctanthemetosum hultenii subass. nov. (with variants inops var. nov. and typicum var. nov.); Caricetum glareosae Molenaar 1974 (as a geographical vicariant Calamagrostis deschampsioides vic. nov.) (with subassociations typicum and festucetosum rubrae); Scirpeto—Hippuridetum tetraphyllae Nordh. 1954 (inops subass. nov.), and the Dupontia psilosantha com. type that belong to the three alliance of the Glauco-Puccinellietalia order of the Juncetea maritime class are described with the Braun-Blanquet approach. A provisional ass. Parnassio palustris—Salicetum reptantis ass. nov. prov. represented the transitional vegetation between marshes and tundras belongs to the Scheuchzerio—Caricetea fuscae class. This shows that syntaxa of different levels known previously for various territories outside of the Russian Arctic are rather common at least in its European part. The comparison of the classification units of both Braun-Blanquet and Russian dominant systems (used by A. I. Leskov in the same region in the first half of the last century) has demonstrated a large correspondence in between and the absence of the insuperable barrier between two approaches.