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