nl, oost-zuid-holland, agrostis stolonifera, ranunculus repens, lolium perenne, poa trivialis, holcus lanatus, phragmites australis, trifolium repens, elymus repens, persicaria amphibia, rumex acetosa, dactylis glomerata, phalaris arundinacea, ranunculus acris, cirsium arvense, cerastium holosteoides, glyceria fluitans, glyceria maxima, stellaria media, urtica dioica, alopecurus geniculatus, alopecurus pratensis, glechoma hederacea, poa annua, phleum pratense, festuca rubra, argentina anserina, bellis perennis, cardamine pratensis, plantago lanceolata, poa pratensis, elodea nuttallii, plantago major, polygonum aviculare, trifolium pratense, ranunculus sceleratus, bromus hordeaceus, spirodela polyrhiza, sparganium erectum, rumex crispus, lemna trisulca, carex riparia, juncus articulatus, epilobium hirsutum, galium palustre, rumex obtusifolius, anthoxanthum odoratum, carex hirta, arrhenatherum elatius, bolboschoenus maritimus, juncus effusus