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