This association includes stands of Potamogeton lucens, a submerged, broad-leaved species, which occurs in clear, mesotrophic to naturally eutrophic water, usually 50–100 cm deep, with an accumulation of organic sediment on the bottom. Its habitats include fishponds, oxbows, alluvial pools, flooded sand pits in advanced successional stages, and lentic sections of streams. This vegetation type is scattered across the Czech Republic, but it has disappeared from many localities, mainly due to intensification of fishpond management and increase in water turbidity.