Orig. (Šmarda 1950): Asociace: Vaccinium myrtillus-Festuca supina
Syn.: Calamagrostio villosae-Vaccinietum myrtilli Šmarda 1950 (§ 31, mladší homonymum: non Calamagrostio villosae-Vaccinietum myrtilli Sillinger 1933), Calamagrostio villosae-Vaccinietum Schubert 1960 (fantom), Calamagrostio villosae-Vaccinietum Schubert 1973, Rhodococco-Vaccinietum myrtilli Sýkora 1972 p. p.
Formal definition: Vaccinium myrtillus cover > 25 % AND group Trientalis europaea NOT group Eriophorum vaginatum NOT Pinus mugo cover > 25 % NOT Pinus rotundata cover > 5 %