TYPOLOGICAL ANALYSIS OF INVASIVE SPECIES IN THE SOUTHWEST OF THE CENTRAL RUSSIAN UPLAND (RUSSIA)

As a result of the studying the flora invasive component of the southwest of the Central Russian Upland (Russia), the taxonomic and typological structure of alien species in the region was defined. There were found new species registered for the first time in the study area. The analysis of life forms of the invasive component of the flora of the region revealed the predominance of annuals (33.4%), polycarpic herbs (25.0%), trees (17.8%) in its structure. In their relation to moisture conditions eumesophytes (46.5%) and xeromesophytes (32.1%)dominate among the invasive species. The analysis of the geographical element indicates that among invasive species the expanded area plants of North American origin (40.4%), European origin (27.4%) and Asian origin (10.7%) prevail. Key words: invasive species, structure, analysis, life form