nl, zuidwest-friesland, lemna minor, agrostis stolonifera, phragmites australis, glyceria maxima, phalaris arundinacea, persicaria amphibia, glyceria fluitans, spirodela polyrhiza, ranunculus repens, ranunculus sceleratus, stuckenia pectinata, eleocharis palustris, lemna trisulca, poa trivialis, potamogeton pusillus, sparganium erectum, alisma plantago-aquatica, bolboschoenus maritimus, alopecurus geniculatus, trifolium repens, butomus umbellatus, ceratophyllum demersum, galium palustre, elodea nuttallii, myosotis scorpioides, equisetum fluviatile, persicaria hydropiper, rorippa amphibia, myriophyllum spicatum, sagittaria sagittifolia, juncus articulatus, hydrocharis morsus-ranae, cardamine pratensis, lycopus europaeus, holcus lanatus, juncus effusus, potamogeton trichoides, elymus repens, argentina anserina, ranunculus circinatus, elodea canadensis, zannichellia palustris, oenanthe aquatica, poa annua, cirsium arvense, lolium perenne, carex riparia, epilobium hirsutum, typha angustifolia, schoenoplectus lacustris