lemna trisulca, oenanthe aquatica, spirodela polyrhiza, elodea nuttallii, glyceria fluitans, agrostis stolonifera, ceratophyllum demersum, glyceria maxima, juncus articulatus, myosotis scorpioides, phalaris arundinacea, ranunculus flammula, sagittaria sagittifolia, bidens cernuus