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