Orig. (Corillion 1957): Charetum vulgaris
Syn.: Charo-Tolypelletum glomeratae Corillion 1957 p. p. (§ 25), Thero-Charetum vulgaris Krause 1969, Charetum vulgaris Zutshi 1975
Formal definition: Chara vulgaris cover > 25 % NOT Batrachium aquatile s. l. cover > 25 % NOT Batrachium circinatum cover > 25 % NOT Eleocharis palustris agg. cover > 25 % NOT Eleocharis quinqueflora cover > 25 % NOT Juncus.subnodulosus cover > 25 % NOT Potamogeton acutifolius cover > 25 % NOT Potamogeton gramineus cover > 25 % NOT Potamogeton lucens cover > 25 % NOT Typha angustifolia cover > 25 %