be, arr. oostende, agrostis stolonifera, bolboschoenus maritimus, phragmites australis, ranunculus sceleratus, helosciadium nodiflorum, eleocharis palustris, lemna minor, stuckenia pectinata, ranunculus repens, apium nodiflorum, persicaria amphibia, epilobium hirsutum, poa trivialis, sparganium erectum, glyceria maxima, alisma plantago-aquatica, alopecurus geniculatus, cirsium arvense, phalaris arundinacea, lycopus europaeus, veronica catenata, butomus umbellatus, trifolium repens, glyceria fluitans, schoenoplectus tabernaemontani, zannichellia palustris, argentina anserina, myriophyllum spicatum, juncus articulatus, rumex conglomeratus, ceratophyllum demersum, cotula coronopifolia, rumex crispus, lemna trisulca, atriplex prostrata, plantago major, urtica dioica, calystegia sepium, oenanthe fistulosa, typha latifolia, myosotis scorpioides, juncus bufonius, lolium perenne, persicaria hydropiper, carex riparia, typha angustifolia, elodea nuttallii, rumex hydrolapathum, spirodela polyrhiza, galium palustre