be, arr. oostende, eleocharis palustris, lemna minor, agrostis stolonifera, apium nodiflorum, helosciadium nodiflorum, bolboschoenus maritimus, stuckenia pectinata, myriophyllum spicatum, persicaria amphibia, phragmites australis, glyceria fluitans, ranunculus sceleratus, sparganium erectum, alisma plantago-aquatica, oenanthe fistulosa, juncus articulatus, zannichellia palustris, ceratophyllum demersum, ranunculus repens, potamogeton natans, lemna trisulca, glyceria maxima, alopecurus geniculatus, potamogeton pusillus, galium palustre, poa trivialis, spirodela polyrhiza, potamogeton crispus, butomus umbellatus, myosotis scorpioides, glyceria notata, phalaris arundinacea, trifolium repens, equisetum fluviatile, elodea canadensis, veronica catenata, potamogeton trichoides, rorippa amphibia, juncus bufonius, persicaria hydropiper, rumex conglomeratus, nasturtium officinale, schoenoplectus lacustris, schoenoplectus tabernaemontani, lemna gibba, ranunculus circinatus, oenanthe aquatica, plantago major, rumex crispus, epilobium hirsutum