nl, oost-zuid-holland, agrostis stolonifera, elodea nuttallii, glyceria maxima, spirodela polyrhiza, glyceria fluitans, ranunculus repens, poa trivialis, lemna trisulca, lolium perenne, phalaris arundinacea, trifolium repens, alopecurus geniculatus, ranunculus sceleratus, sparganium erectum, persicaria amphibia, butomus umbellatus, holcus lanatus, ceratophyllum demersum, lemna gibba, elymus repens, sagittaria sagittifolia, potamogeton pusillus, stellaria media, ranunculus circinatus, poa annua, eleocharis palustris, persicaria hydropiper, myosotis scorpioides, rorippa amphibia, hydrocharis morsus-ranae, alopecurus pratensis, ranunculus acris, equisetum fluviatile, rumex acetosa, phragmites australis, cerastium holosteoides, cirsium arvense, dactylis glomerata, cardamine pratensis, phleum pratense, oenanthe fistulosa, polygonum aviculare, stuckenia pectinata, glechoma hederacea, juncus articulatus, potamogeton trichoides, bolboschoenus maritimus, lemna minor, argentina anserina, alisma plantago-aquatica