be, arr. oostende, agrostis stolonifera, ranunculus repens, phragmites australis, poa trivialis, ranunculus sceleratus, bolboschoenus maritimus, persicaria amphibia, eleocharis palustris, alopecurus geniculatus, trifolium repens, lolium perenne, glyceria maxima, cirsium arvense, glyceria fluitans, lemna minor, helosciadium nodiflorum, phalaris arundinacea, holcus lanatus, sparganium erectum, apium nodiflorum, rumex crispus, elymus repens, argentina anserina, stuckenia pectinata, epilobium hirsutum, cardamine pratensis, oenanthe fistulosa, plantago major, juncus articulatus, rumex conglomeratus, lemna trisulca, urtica dioica, alisma plantago-aquatica, elodea nuttallii, butomus umbellatus, carex hirta, myosotis scorpioides, carex riparia, ceratophyllum demersum, equisetum palustre, poa annua, veronica catenata, berula erecta, spirodela polyrhiza, galium palustre, ranunculus acris, juncus bufonius, persicaria hydropiper, bellis perennis, lemna gibba