Eleocharis multicaulis, Scirpus fluitans, Juncus bulbosus, Hypericum elodes, Pilularia globulifera, Deschampsia setacea, Ranunculus flammula, Littorella uniflora communities of shallow acid pools of the Palaearctic and their margins susceptible to short periods of emersion.
Oligotrophic pool fringe communities of sub-Atlantic Europe dominated by Juncus bulbosus, often accompanied by Ranunculus flammula, Agrostis canina, Glyceria fluitans.