This is vegetation of dystrophic to mesotrophic bog pools with Sparganium natans, accompanied by Utricularia intermedia. U. minor and U. ochroleuca. It can also occur in nutrient-poor, man-made habitats, such as flooded hollows after peat extraction, littoral zone of oligotrophic fishponds or pools in sand pits. It occurs in deeper water than the other associations of the alliance Sphagno-Utricularion, but can nevertheless easily survive occasional drops of the water table and exposure of the bottom. Scattered localities of this rare vegetation type occur in various parts of Bohemia.