nl, delft en westland, lolium perenne, trifolium repens, ranunculus repens, agrostis stolonifera, poa trivialis, alopecurus geniculatus, poa annua, stellaria media, elymus repens, holcus lanatus, ranunculus acris, phleum pratense, cerastium holosteoides, bellis perennis, poa pratensis, rumex acetosa, persicaria amphibia, glyceria fluitans, dactylis glomerata, cirsium arvense, alopecurus pratensis, plantago major, bromus hordeaceus, cardamine pratensis, polygonum aviculare, argentina anserina, capsella bursa-pastoris, scorzoneroides autumnalis, eleocharis palustris, ranunculus sceleratus, phalaris arundinacea, rumex crispus, carex hirta, lolium pratense, glechoma hederacea, agrostis capillaris, glyceria maxima, festuca rubra, juncus articulatus, trifolium pratense, hordeum secalinum, persicaria hydropiper, elodea nuttallii, rumex obtusifolius, cynosurus cristatus, anthoxanthum odoratum, myosotis scorpioides, bolboschoenus maritimus, plantago lanceolata, phragmites australis