phragmites australis, potamogeton pusillus, azolla filiculoides, agrostis stolonifera, bolboschoenus maritimus, eleocharis palustris, elodea nuttallii, lemna gibba, persicaria amphibia, ranunculus circinatus, spirodela polyrhiza, stuckenia pectinata, zannichellia palustris, nasturtium microphyllum