Orig. (K. Mráz 1959): Piceo-Alnetum (Picea excelsa=Picea abies, Alnus glutinosa)

Syn.: Piceo-Alnetum Rubner 1954 (§ 2b, nomen nudum), Piceo-Alnetum Rubner in Oberdorfer 1957 (§ 2b, nomen nudum)

Formální definice: (Alnus glutinosa pokr. > 25 % OR Alnus incana pokr. > 25 %) AND (skup. Vaccinium myrtillus OR skup. Viola palustris) NOT skup. Carex acuta NOT skup. Carex elongata NOT skup. Carex rostrata NOT skup. Lysimachia vulgaris NOT skup. Urtica dioica NOT Pinus sylvestris pokr. > 5 %