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