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