nl, delft en westland, agrostis stolonifera, lolium perenne, ranunculus repens, trifolium repens, poa trivialis, poa annua, alopecurus geniculatus, stellaria media, glyceria fluitans, elymus repens, ranunculus sceleratus, glyceria maxima, holcus lanatus, persicaria amphibia, elodea nuttallii, persicaria hydropiper, spirodela polyrhiza, phalaris arundinacea, ranunculus acris, polygonum aviculare, lemna trisulca, eleocharis palustris, cerastium holosteoides, alopecurus pratensis, phleum pratense, myosotis scorpioides, dactylis glomerata, rumex acetosa, sparganium erectum, cirsium arvense, butomus umbellatus, potamogeton pusillus, capsella bursa-pastoris, poa pratensis, bellis perennis, ceratophyllum demersum, argentina anserina, cardamine pratensis, juncus articulatus, ranunculus circinatus, lemna gibba, glechoma hederacea, bolboschoenus maritimus, rorippa amphibia, plantago major, sagittaria sagittifolia, equisetum fluviatile, bromus hordeaceus, oenanthe fistulosa, rumex crispus