One of the three model objects taken for the purposes of assessing the territorial biodiversity of an ecoregion were arboreal plants. They represent a well-studied collective non-taxonomic group comprising species from various families, whose above-ground shoots become to a certain extent lignified.
All told, 356 species of arboreal plants are known for the Far-Eastern ecoregion.
The biggest center of dendroflora diversity in the Far-Eastern ecoregion is highlighted by the authors within evpacific broad-leaved forests of the Southern Primorie. Forest communities of the western Primorie are also featured by the abundance of arboreal plants (subpacific broad-leaved forests), along with evpacific taiga forests of Sikhote-Alin and Maly Khingan forests (subpacific sub-broad-leafed forests).