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