elodea nuttallii, sparganium erectum, spirodela polyrhiza, lemna trisulca, agrostis stolonifera, bidens cernuus, butomus umbellatus, glyceria fluitans, glyceria maxima, hydrocharis morsus-ranae, myosotis scorpioides, phalaris arundinacea, rorippa amphibia, sagittaria sagittifolia