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