nl, oost-zuid-holland, agrostis stolonifera, ranunculus repens, poa trivialis, phalaris arundinacea, glyceria maxima, holcus lanatus, glyceria fluitans, spirodela polyrhiza, persicaria amphibia, lolium perenne, sparganium erectum, lemna trisulca, galium palustre, juncus effusus, rumex acetosa, trifolium repens, rorippa amphibia, cardamine pratensis, phragmites australis, ceratophyllum demersum, glechoma hederacea, persicaria hydropiper, alopecurus pratensis, iris pseudacorus, ranunculus acris, myosotis scorpioides, wolffia arrhiza, alopecurus geniculatus, elodea nuttallii, elymus repens, urtica dioica, rumex hydrolapathum, stellaria media, hydrocharis morsus-ranae, carex acuta, cerastium holosteoides, acorus calamus, lemna gibba, lythrum salicaria, dactylis glomerata, juncus articulatus, poa annua, cirsium arvense, oenanthe fistulosa, ranunculus sceleratus, ranunculus flammula, cirsium palustre, rumex obtusifolius, equisetum fluviatile, nuphar lutea