Orig. (Zlatník 1928b): association à Sesleria calcaria et Carex humilis (Sesleria calcaria ~ S. caerulea)
Syn.: Seslerietum calcariae caricetosum humilis cum Helianthemum canum Zlatník 1928 (§ 36, nomen ambiguum), Helianthemo cani-Seslerietum caeruleae Klika 1933, Helianthemo cani-Caricetum humilis Kubíková 1977, Primulo veris-Seslerietum calcariae Zlatník ex Kubíková 1977 p. p.
Formal definition: Sesleria caerulea cover > 25 % AND (group Potentilla arenaria OR group Stachys recta) NOT group Cirsium acaule NOT group Geranium sanguineum NOT group Poa badensis NOT Brachypodium pinnatum cover > 5 % NOT Festuca rupicola cover > 5 % NOT Thlaspi montanum cover > 5 %