Woody plants used in landscaping of the Russian Far East Northern settle-ments (Khabarovsk Region)

The aim of the study is to determine the composition of woody plants used in the landscape design of the villages of Solnechny and Gorny of the Khabarovsk Region. Objectives: to study the systematic affiliation of woody plants, their occurrence, geographical origin and life forms. The landscape design of the village of Solnechny uses 41 taxa – 39 species and 2 ornamental forms of woody plants from 33 genera and 17 families. The largest is the Rosaceae family – 17 taxa. It is inferior to the families Salicaceae, Pinaceae, Oleaceae – 3 taxa each; Cornaceae, Caprifoliaceae – 2 taxa each. The remaining 11 families are represented by one taxon. Of the genera, the genus Rosa is represented to the greatest extent (3 taxa), 2 taxa each include the genera Populus, Physocarpus, Spiraea, Swida. In terms of geographical origin, native plants (29 species) clearly predominate in Solnechny, while introduced species are represented by 10 species. Of interest is the presence of such North American species as Acer negundo and Parthenocissus inserta – this is their northernmost occurrence in the Far East. Hippophae rhamnoides is also registered in the urban flora of Solnechny. All three species are included in the Black Book of the Far East. Most of the woody plant taxa (28) occur singly; frequent occurrence is observed in 5 taxa, mass occurrence – in 3 taxa. Arboriflora of Solnechny is represented by such life forms as tree – 20 taxa and shrub – 19 taxa. There are also 2 treelike vines. In the landscaping of the Gorny settlement, species growing in the immediate natural environment are predominantly found. They belong to the families Salicaceae and Betulaceae. There is one introduced species – Hippophae rhamnoides.