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