nl, delft en westland, poa trivialis, ranunculus repens, agrostis stolonifera, alopecurus geniculatus, trifolium repens, lolium perenne, elymus repens, phalaris arundinacea, glyceria fluitans, persicaria amphibia, poa annua, holcus lanatus, glyceria maxima, stellaria media, cerastium holosteoides, rumex acetosa, alopecurus pratensis, ranunculus acris, cardamine pratensis, ranunculus sceleratus, argentina anserina, cirsium arvense, phleum pratense, persicaria hydropiper, plantago major, poa pratensis, eleocharis palustris, lolium pratense, polygonum aviculare, myosotis scorpioides, capsella bursa-pastoris, juncus articulatus, bellis perennis, bromus hordeaceus, scorzoneroides autumnalis, rumex crispus, spirodela polyrhiza, glechoma hederacea, phragmites australis, galium palustre, dactylis glomerata, rorippa amphibia, lemna trisulca, anthoxanthum odoratum, juncus effusus, bolboschoenus maritimus, urtica dioica, lemna minor, equisetum fluviatile, ranunculus flammula