Floral finds in the city of Abakan (Republic of Khakassia, Russian Federation)

Abstract

Abakan is a city district, the capital of a constituent entity of the Russian Federation of the Republic of Khakassia, with a population of 171.2 thousand people. On botanical and geographical zoning of L M Cherepnin Abakan is located in the Priabakanskaya valley steppe (S1) in the central part of the Khakass-Minusinsk depression at a height of 250 m above the sea level at the mouth of the Abakan river. Despite the fact that the territory of the Republic of Khakassia is studied well from the botanical point of view, there is not enough information about the current state, structure and species composition of the flora of the city of Abakan, which constituted the basis for in-depth studies of its vegetation cover. The aim of the work was to identify new and rare plant species in the flora of the city of Abakan. Floristic collections in the city were carried out from 2016 to 2018 by the method of model section of the urbanized landscape. As a result of the expeditionary research of 11 model sections, new plant species for the Republic of Khakassia (Centaurea ruthenica, Galium coriaceum, Myosotis sparsiflora, Oxytropis candicans, Peucedanum morisonii, Sagittaria trifolia, Silene turgida) and the city of Abakan were found and identified for the first time in the administrative boundaries of Abakan (Aquilegia grandulosa, Batrachium peltatum, Potamogeton crispus, Scirpus radicans, Viola canina). Habitats and model sections with the coordinates of the collection are specified, the boundaries of the ranges of species in the regions are marked.