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