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