Orig. (Husová in Moravec et al. 1982): Mercuriali-Fraxinetum (Klika 1942) Husová nom. novum (Mercurialis perennis, Fraxinus excelsior)

Syn.: Aceri-Fraxinetum Tüxen 1937 (§ 31, mladší homonymum, non: Aceri pseudoplatani-Fraxinetum Rübel 1930), Aceri-Fagetum carpaticum Klika 1942 (§ 36)

Formal definition: group Mercurialis perennis AND group Ulmus glabra NOT group Alliaria petiolata NOT group Cardamine amara NOT group Carex remota NOT group Corydalis cava NOT group Lathyrus vernus NOT group Petasites albus NOT Abies alba cover > 50 % NOT Alnus glutinosa cover > 5 % NOT Aruncus dioicus cover > 5 % NOT Carpinus betulus cover > 5 % NOT Fagus sylvatica cover > 25 % NOT Larix decidua cover > 50 % NOT Lunaria rediviva cover > 5 % NOT Picea abies cover > 50 % NOT Pinus sylvestris cover > 25 % NOT Quercus petraea agg. cover > 5 % NOT Quercus robur cover > 5 %