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