nl, oost-zuid-holland, spirodela polyrhiza, lemna trisulca, glyceria fluitans, agrostis stolonifera, elodea nuttallii, glyceria maxima, sparganium erectum, rorippa amphibia, ranunculus circinatus, sagittaria sagittifolia, myosotis scorpioides, persicaria hydropiper, ranunculus sceleratus, butomus umbellatus, ceratophyllum demersum, persicaria amphibia, ranunculus repens, equisetum fluviatile, phalaris arundinacea, hydrocharis morsus-ranae, alopecurus geniculatus, oenanthe fistulosa, poa trivialis, oenanthe aquatica, lemna gibba, eleocharis palustris, potamogeton pusillus, elodea canadensis, nuphar lutea, trifolium repens, potamogeton natans, juncus articulatus, potamogeton trichoides, galium palustre, holcus lanatus, wolffia arrhiza, potamogeton friesii, nymphoides peltata, lolium perenne, stratiotes aloides, poa annua, stellaria alsine, alisma plantago-aquatica, stellaria media, ranunculus flammula, berula erecta, elymus repens, cardamine pratensis, lemna minor, glechoma hederacea