text: oenanthe aquatica, alopecurus aequalis, lemna minor, persicaria lapathifolia, spirodela polyrhiza, bidens frondosa, bidens tripartita, carex bohemica, echinochloa crus-galli, glyceria fluitans, leersia oryzoides, lythrum salicaria, persicaria hydropiper, ranunculus sceleratus, veronica anagallis-aquatica