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