spirodela polyrhiza, glyceria fluitans, agrostis stolonifera, alopecurus geniculatus, catabrosa aquatica, lemna gibba, persicaria hydropiper, bidens cernuus, callitriche obtusangula, ceratophyllum demersum, myosotis scorpioides, oenanthe fistulosa, ranunculus repens, ranunculus sceleratus, persicaria amphibia