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