be, arr. oostende, cotula coronopifolia, crassula helmsii, phragmites australis, agrostis stolonifera, ludwigia grandiflora, ranunculus repens, ranunculus sceleratus, urtica dioica, poa trivialis, azolla filiculoides, elodea nuttallii, bidens frondosa, calystegia sepium, persicaria amphibia, cirsium arvense, alisma plantago-aquatica, lycopus europaeus, phalaris arundinacea, epilobium hirsutum, lythrum salicaria, glyceria maxima, alopecurus geniculatus, bolboschoenus maritimus, lemna minor, galium palustre, lolium multiflorum, solanum dulcamara, iris pseudacorus, echinochloa crus-galli, holcus lanatus, sparganium erectum, cardamine pratensis, lolium perenne, rumex hydrolapathum, symphytum officinale, atriplex prostrata, eleocharis palustris, persicaria hydropiper, althaea officinalis, rorippa amphibia, rumex crispus, stachys palustris, persicaria maculosa, helosciadium nodiflorum, lysimachia vulgaris, trifolium repens, apium nodiflorum, rumex conglomeratus, angelica archangelica, butomus umbellatus