This publication presents the characteristics for the associations Agrostio-Populetum tremulae and Epilobio-Salicetum capreae of the class Epilobietea angustifolii. Their peculiarity is that they are intermediate between meadows and forests during autogenous succession. The intermediate status of plant communities is proved by high species diversity of the existing flora. There are also many species specific for communities of meadow and forest vegetation. They can be considered as bifurcation points of the vectors of plant communities dynamics. These are probably determining for the final forest type. Associations Agrostio-Populetum tremulae and Epilobio-Salicetum capreae are evenly extended within the Right Bank Polissya. Regional differences of the flora occur only at the level of some variations of the plant communities associations. Differentiation of plant associations is caused mainly by soil and microclimate conditions.

Keywords: autogenous succession, plant communities, syntaxonomy, recovery of forest vegetation

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