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