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