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