elodea nuttallii, sparganium erectum, agrostis stolonifera, acorus calamus, alisma plantago-aquatica, alopecurus geniculatus, berula erecta, juncus articulatus, lemna trisulca, oenanthe aquatica, persicaria hydropiper, phalaris arundinacea, potamogeton pusillus, spirodela polyrhiza