Alien species of flora, renewable and spreading in the Krasnodar territory

The diversity of alien species in the flora of the Western Ciscaucasia and the Northwestern Caucasus is considered in the article. The materials of the article are based on the authors' research conducted from 1996 to 2023 and data collected by a detailed route survey of the Sochi Arboretum, the arboretum "Southern Cultures", the territory of the city of Sochi, the landscapes of the Black Sea coast, the Northwestern Caucasus, and the Western Caucasus. The reasons for the current high level of alien flora in the region are discussed in the article. Intensive agriculture began to take shape in the region under consideration since the Neolithic, historically there has been a high level of plant introduction and naturalization and a long period of complex migration processes is characteristic.

The purpose of the research is to combine into a single regional list of alien species that are capable of self-renewal and distribution in natural, semi-natural, disturbed and anthropogenic plant communities.

A taxonomic and typological analysis of alien species has been carried out. The volume of families was adopted in accordance with the international APG IV system (2016), the volume of genera and species in accordance with the WFO (2023). The list of 587 taxa, including 563 species, 12 subspecies, 10 varieties, 3 varieties of alien flora, which belong to 356 genera of 106 families, has been established according to modern taxonomic nomenclature.

The list of alien species that are renewable and spreading on the territory of the Krasnodar Territory covers introduction points, residential zones and urbanocenoses, and the all natural landscapes of the region. To clarify the transformation of the distribution area of the species, the abbreviation was used: C – botanical gardens and arboretums, U – anthropogenic territories, N - natural territories. It has been established that the existing scales of invasiveness and potential invasiveness do not allow us to simultaneously assess such a heterogeneous set of plants characterized by a mass of nuances of their distribution.

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