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