The analysis of the flora invasive component in the southwest of the Central Russian Upland (Russia)

Abstract

Aim: Analytical characteristics of the flora invasive component in the southwest of the Central Russian Upland are presented in this work. Methods: The intensification of allogenic plants relocation into the region is confirmed by the findings of 13 new adventitious species: Amaranthus cruentus, Campanula × spryginii, Centaurea montana, Commelina communis, Grindelia squarrosa, Jurinea charcoviensis, Lupinus polyphyllus, Nicotiana rustica, Onobrychis tanaitica, Panicum dichotomiflorum, Physalis philadelphica, Ptelea trifoliata, and Thladiantha dubia.Results: It was defined, that Asteraceae (21.2%) and Poaceae (9.3%) took the leading position in the hierarchy of the flora invasive component. Eumosophytes (48.8%), xeromesophytes (31.6%), and mesocerphophytes (13.1%) prevailed with regard to moisture conditions.According to the life forms of Raunkier, invasive species of the region were represented mainly by terophytes (35.6%), and phanerophytes (31.6%). Conclusion: The greatest number of invasive species was found within the boundaries of transport highways, valleys of small rivers, floodplain meadows, and the fewest number - in the areas of cereal-meadow steppes and in the forest phytocenoses.