Orig. (Paul & Lutz 1941): Carex diandra-Agrostis canina-Ass. Paul et Lutz 1941

Syn.: Carici chordorrhizae-Sphagnetum obtusi Warén 1926 (§ 3d, asociace uppsalské školy), Caricetum chordorrhizae Paul et Lutz 1941 (§ 25), Amblystegio scorpioidis-Caricetum diandrae Osvald 1923 calliergonetosum gigantei Jasnowski 1962, Meesio-Caricetum limosae Rybníček 1974 p. p., Amblystegio scorpioidis-Caricetum diandrae Osvald 1923 sphagnetosum auriculati Steiner 1992, Amblystegio scorpioidis-Caricetum diandrae Osvald 1923 sphagnetosum teretis Krausch ex Steiner 1992, Caricetum diandrae sensu auct. non Jonas 1933 (pseudonym)

Formal definition: Carex chordorrhiza cover > 5 % OR Carex diandra cover > 5 % OR Carex limosa cover > 5 % AND ((group Carex panicea AND group Carex rostrata) OR group Viola palustris) NOT group Eriophorum latifolium NOT group Sphagnum warnstorfii NOT Hamatocaulis vernicosus cover > 5 % NOT Scorpidium revolvens s. l. cover > 5 % NOT Sphagnum contortum cover > 25 % NOT Sphagnum recurvum s. l. cover > 50 % NOT Warnstorfia sarmentosa cover > 5 %