nl, oost-zuid-holland, agrostis stolonifera, ranunculus repens, glyceria fluitans, poa trivialis, trifolium repens, glyceria maxima, alopecurus geniculatus, lolium perenne, ranunculus sceleratus, persicaria hydropiper, stellaria media, poa annua, persicaria amphibia, spirodela polyrhiza, holcus lanatus, phalaris arundinacea, myosotis scorpioides, lemna trisulca, elodea nuttallii, elymus repens, rorippa amphibia, sparganium erectum, eleocharis palustris, butomus umbellatus, ranunculus acris, ranunculus circinatus, ceratophyllum demersum, alopecurus pratensis, juncus articulatus, rumex acetosa, oenanthe fistulosa, phleum pratense, equisetum fluviatile, sagittaria sagittifolia, potamogeton pusillus, polygonum aviculare, cardamine pratensis, cerastium holosteoides, dactylis glomerata, stellaria alsine, glechoma hederacea, oenanthe aquatica, capsella bursa-pastoris, cirsium arvense, lemna gibba, galium palustre, argentina anserina, poa pratensis, hydrocharis morsus-ranae, plantago major