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