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