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