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