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