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