This vegetation type is dominated by Utricularia intermedia and U. ochroleuca with a significant moss layer, which includes Drepanocladus spp. and Sphagnum spp. Its natural habitat is shallow, intermittently flooded bog pools and hollows with oligotrophic to dystrophic non-calcareous water, but it can also occur in abandoned peat extraction hollows and littoral zones of mesotrophic to oligotrophic fishponds. It occurs mainly in the Třeboň Basin, but it has also been found rarely in other cool and precipitation-rich areas in western Bohemia.