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