be, arr. dendermonde, bidens frondosa, phalaris arundinacea, urtica dioica, cirsium arvense, phragmites australis, ranunculus repens, poa trivialis, persicaria hydropiper, lythrum salicaria, rorippa amphibia, calystegia sepium, agrostis stolonifera, glyceria maxima, lycopus europaeus, angelica archangelica, symphytum officinale, persicaria amphibia, rumex obtusifolius, impatiens glandulifera, epilobium hirsutum, solanum dulcamara, glechoma hederacea, myosotis scorpioides, heracleum sphondylium, lolium perenne, salix viminalis, stachys palustris, echinochloa crus-galli, ranunculus sceleratus, dactylis glomerata, salix alba, elymus repens, galium aparine, alopecurus pratensis, tanacetum vulgare, iris pseudacorus, lemna minor, arrhenatherum elatius, alisma plantago-aquatica, plantago major, atriplex prostrata, lipandra polysperma, rorippa palustris, elodea nuttallii, spirodela polyrhiza, trifolium repens, poa annua, artemisia vulgaris, sparganium erectum, persicaria maculosa