nl, zuidwest-friesland, ranunculus repens, agrostis stolonifera, poa trivialis, trifolium repens, lolium perenne, alopecurus geniculatus, glyceria fluitans, persicaria amphibia, holcus lanatus, elymus repens, rumex acetosa, poa annua, ranunculus acris, glyceria maxima, cerastium holosteoides, cardamine pratensis, stellaria media, alopecurus pratensis, phleum pratense, ranunculus sceleratus, phalaris arundinacea, bellis perennis, eleocharis palustris, phragmites australis, elodea nuttallii, lemna minor, potamogeton pusillus, bromus hordeaceus, lolium pratense, equisetum fluviatile, spirodela polyrhiza, cirsium arvense, poa pratensis, anthoxanthum odoratum, polygonum aviculare, argentina anserina, scorzoneroides autumnalis, lemna trisulca, plantago major, dactylis glomerata, myosotis scorpioides, butomus umbellatus, capsella bursa-pastoris, rumex crispus, sparganium erectum, persicaria hydropiper, ceratophyllum demersum, juncus articulatus, cynosurus cristatus, ranunculus circinatus