nl, oost-zuid-holland, agrostis stolonifera, ranunculus repens, trifolium repens, poa trivialis, lolium perenne, alopecurus geniculatus, poa annua, elymus repens, holcus lanatus, stellaria media, glyceria fluitans, rumex acetosa, ranunculus acris, cerastium holosteoides, phleum pratense, persicaria amphibia, poa pratensis, alopecurus pratensis, cardamine pratensis, eleocharis palustris, cirsium arvense, bellis perennis, ranunculus sceleratus, plantago major, glyceria maxima, phalaris arundinacea, dactylis glomerata, polygonum aviculare, bromus hordeaceus, argentina anserina, capsella bursa-pastoris, scorzoneroides autumnalis, juncus articulatus, agrostis capillaris, persicaria hydropiper, rumex crispus, carex hirta, elodea nuttallii, anthoxanthum odoratum, bolboschoenus maritimus, lolium pratense, spirodela polyrhiza, potamogeton pusillus, lemna trisulca, oenanthe fistulosa, stuckenia pectinata, phragmites australis, butomus umbellatus, myosotis scorpioides, festuca rubra