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