butomus umbellatus, spirodela polyrhiza, typha latifolia, agrostis stolonifera, alisma plantago-aquatica, alopecurus aequalis, bidens cernuus, chara vulgaris, eleocharis palustris, equisetum palustre, leersia oryzoides, lemna minor, lysimachia vulgaris, potamogeton natans, veronica beccabunga