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