be, arr. oostende, phragmites australis, agrostis stolonifera, ranunculus sceleratus, bolboschoenus maritimus, cotula coronopifolia, epilobium hirsutum, elodea nuttallii, ranunculus repens, stuckenia pectinata, poa trivialis, lemna minor, cirsium arvense, persicaria amphibia, glyceria maxima, urtica dioica, phalaris arundinacea, butomus umbellatus, alisma plantago-aquatica, helosciadium nodiflorum, eleocharis palustris, sparganium erectum, lycopus europaeus, calystegia sepium, alopecurus geniculatus, lolium perenne, azolla filiculoides, apium nodiflorum, trifolium repens, ceratophyllum demersum, atriplex prostrata, lemna trisulca, persicaria hydropiper, lemna gibba, plantago major, rorippa amphibia, rumex hydrolapathum, spirodela polyrhiza, rumex crispus, myosotis scorpioides, typha latifolia, zannichellia palustris, lythrum salicaria, elymus repens, glyceria fluitans, rumex conglomeratus, crassula helmsii, veronica catenata, holcus lanatus, poa annua, myriophyllum spicatum