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