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