Associations, often very limited in extent, appearing in the drying phase of temporary pools, flooded ruts of forest paths, wet heath paths, humid forest cuts, seeping mowed lawns and other sufficiently lit temporarily inundated, most often acidic, soils, characterised by Juncus bufonius, Scirpus setaceus, Cyperus flavescens, Centunculus minimus, Spergularia segetalis, Centaurium pulchellum, Blackstonia perfoliata, Samolus valerandi, Cicendia filiformis, Radiola linoides and Illecebrum verticillatum.