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