nl, utrecht, agrostis stolonifera, ranunculus repens, lolium perenne, poa trivialis, trifolium repens, holcus lanatus, phalaris arundinacea, glyceria fluitans, elymus repens, glyceria maxima, ceratophyllum demersum, poa annua, urtica dioica, sparganium erectum, dactylis glomerata, polygonum aviculare, lemna trisulca, stellaria media, rumex acetosa, ranunculus acris, phragmites australis, spirodela polyrhiza, glechoma hederacea, cirsium arvense, persicaria amphibia, butomus umbellatus, cardamine pratensis, plantago major, alopecurus geniculatus, cerastium holosteoides, lemna gibba, epilobium hirsutum, alopecurus pratensis, myosotis scorpioides, ranunculus sceleratus, elodea nuttallii, galium palustre, bellis perennis, capsella bursa-pastoris, persicaria hydropiper, argentina anserina, rumex obtusifolius, eleocharis palustris, nuphar lutea, juncus articulatus, iris pseudacorus, poa pratensis, phleum pratense, berula erecta, rorippa amphibia