This association comprises forests of Carpinus betulus, Quercus petraea agg. and locally also Q. robur. In some areas of southern and western Bohemia, C. betulus is absent due to migration constraints and the canopy is dominated by Q. robur and Tilia cordata. The herb layer has a constant representation of nemoral species, varying depending on soil properties. This association occurs across a broad range of soil conditions from acidic to calcareous, and mesic to moderately dry. This association is distributed in the western part of central Europe. In the Czech Republic, its occurrences are concentrated in the Bohemian Massif.