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