Cephalanthero-Fagetum is an association of calcicolous forests of Fagus sylvatica with an admixture of other trees and often with a well-developed shrub layer composed of light-demanding species such as Sorbus aria agg. The herb layer contains mesophilous forest species together with calcicolous, thermophilous and light-demanding species, many of them typical of oak forests and forest edges. A typical feature of these forests is the occurrence of Cephalanthera spp. and other orchids. In the Czech Republic this vegetation type occurs on limestone, marlstone and calcareous sandstone at altitudes below 625 m. As such substrates are spottily distributed throughout the country, this vegetation type is not very common.