glyceria maxima, eleocharis palustris, elodea nuttallii, lemna minor, nymphoides peltata, phalaris arundinacea, spirodela polyrhiza, alisma lanceolatum, alisma plantago-aquatica, butomus umbellatus, glyceria fluitans, lemna trisulca, potamogeton pusillus, schoenoplectus lacustris