nasturtium microphyllum, nymphoides peltata, lemna minor, persicaria hydropiper, agrostis stolonifera, glyceria maxima, spirodela polyrhiza, glyceria fluitans, ranunculus repens, sparganium erectum, butomus umbellatus, myosotis scorpioides, veronica catenata, ranunculus sceleratus, rumex conglomeratus, veronica beccabunga