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.
Formální definice: Vaccinium myrtillus pokr. > 25 % AND skup. Trientalis europaea NOT skup. Eriophorum vaginatum NOT Pinus mugo pokr. > 25 % NOT Pinus rotundata pokr. > 5 %