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