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