The Ruderal Flora, Structure and Bioecological Features of the City of Batumi

Abstract

The anthropogenic transformation of vegetation began from time immemorial and continues today. An example of anthropogenic transformation is urbanization, and its accompanying spatial changes and events, - urban flora and ruderal plants, an integral part of urban flora.
Urban processes are taking place in Georgia, among them in Batumi. The paper presents research materials conducted in ruderal areas. A total of 271 species of plants have been recorded in the study area, which belong to 59 families and 178 genera.
The families distinguished by the abundance of species are: Compositae, Leguminosae, Poaceae, Lamiaceae, Brassicaceae, Amaranthaceae, Polygonacea and Rosaceae which include 153 species, which is 47% of the described species, and the remaining 51 families include 118 species.
The following genera lead with three or more species: Amaranthus, Artemisia, Cyperus,Vicia, Erigeron, Euphorbi, Galium, Geranium, Juncus, Medicago, Persicaria, Poa, Polygonum, Rubus, Ranunculus, Rumex, Solanum, Trifolium, Senecio, Sisymbrium , Stellaria, Veronica and Xanthium.
According to the simple classification of life forms, annuals are represented by 131 species, and perennials - grasses, trees, shrubs and lianas are represented by 140 species.
In the study area, the plants of the ruderal ecological group are in first place with 141 species, which is 52% of the described species. As for the origin of the described species, out of 271 species, 88 species are local and 183 species are of foreign origin.
Alien species are distributed as follows: East Asian 52 species, Mediterranean 43 species, European 39 species, North American 28, South American 13 species, Australian 1 and 7 species are cosmopolitan, the place of origin of which is not finally specified. They are spread almost all over the world.