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