be, arr. dendermonde, glyceria maxima, phragmites australis, persicaria amphibia, elodea nuttallii, alisma plantago-aquatica, sparganium erectum, lemna minor, phalaris arundinacea, equisetum fluviatile, agrostis stolonifera, glyceria fluitans, rorippa amphibia, galium palustre, sagittaria sagittifolia, spirodela polyrhiza, lemna trisulca, myosotis scorpioides, ranunculus repens, hydrocharis morsus-ranae, lythrum salicaria, carex acuta, oenanthe aquatica, equisetum palustre, persicaria hydropiper, iris pseudacorus, poa trivialis, lycopus europaeus, eleocharis palustris, rumex hydrolapathum, juncus effusus, urtica dioica, ranunculus sceleratus, elodea canadensis, potamogeton trichoides, ceratophyllum demersum, symphytum officinale, calystegia sepium, potamogeton natans, cardamine pratensis, hottonia palustris, bidens frondosa, lysimachia vulgaris, nuphar lutea, solanum dulcamara, azolla filiculoides, epilobium hirsutum, potamogeton pusillus, lemna gibba, butomus umbellatus, callitriche platycarpa