Meadows developed on moderately to very nutrient-rich, alluvial or fertilized, wet or damp soils, often inundated at least in winter, and relatively lightly mowed or grazed, in lowland, collinar and montane western and central Europe, south to western Iberia. They form a transition between the false oatgrass mesophile meadows, the oligotrophic Molinion formations and the small sedge and large sedge communities. They include a large number of distinctive and often species-rich communities, many of which harbour specialized, rare and threatened species of plants and animals.
Lightly managed hay meadows and pastures on both basocline and acidocline, nutrient-rich soils of middle European lowlands, hills and low mountains under Atlantic or sub-Atlantic climatic conditions. Among the characteristic plant components of the highly diverse communities forming this unit are Caltha palustris, Cirsium palustre, C. rivularis, C. oleraceum, Epilobium parviflorum, Lychnis flos-cuculi, Mentha aquatica, Scirpus sylvaticus, Stachys palustris, Bromus racemosus, Crepis paludosa, Fritillaria meleagris, Geum rivale, Polygonum bistorta, Senecio aquaticus, Trollius europaeus, Lotus uliginosus, Trifolium dubium, Equisetum palustre, Myosotis palustris, Deschampsia cespitosa, Angelica sylvestris, Oenanthe silaifolia, Gratiola officinalis, Inula salicina, Succisella inflexa, Dactylorhiza majalis, Ranunculus acris, Rumex acetosa, Holcus lanatus, Alopecurus pratensis, Festuca pratensis, Juncus effusus, J. filiformis.