Orig. (Oberdorfer 1957): Stellario-Carpinetum ass. nov. (Stellaria holostea, Carpinus betulus)
Syn.: Melampyro nemorosi-Carpinetum Passarge 1957 prov. (§ 3b), Melampyro nemorosi-Carpinetum Passarge 1962 (pseudonym)
Formal definition: (Carpinus betulus cover > 25 % OR Quercus petraea agg. cover > 25 % OR Quercus robur cover > 25 %) AND (group Carex remota OR group Urtica dioica) AND group Lathyrus vernus NOT group Buglossoides purpurocaerulea NOT group Caltha palustris NOT group Carex pilosa NOT group Geranium sanguineum NOT group Lathyrus niger NOT Acer platanoides cover > 5 % NOT Acer pseudoplatanus cover > 5 % NOT Alnus glutinosa cover > 5 % NOT Carex pilosa cover > 25 % NOT Fagus sylvatica cover > 25 % NOT Fraxinus excelsior cover > 5 % NOT Larix decidua cover > 25 % NOT Picea abies cover > 25 % NOT Pinus sylvestris cover > 25 % NOT Tilia cordata cover > 25 % NOT Tilia platyphyllos cover > 5 % NOT Ulmus glabra cover > 5 %