This community includes dense to slighly open vegetation dominated by dicot herbs such as Lythrum hyssopifolia, Mentha pulegium, Peplis portula, Pulicaria vulgaris and other species typical of wet grasslands. It is found on disturbed sites in floodplain meadows, along shores, on bottoms of sand, gravel or loam pits, on infrequently used dirt roads or in fish storage ponds. The habitat is flooded in spring by shallow water, which slowly drops and eventually dries out in summer. In the Czech Republic this association has been found mainly in the confluence area of the Morava and Dyje rivers in southern Moravia, but atypical stands also occur on some sites in southern Bohemia.