be, arr. leuven, crassula helmsii, bidens frondosa, ludwigia grandiflora, lythrum salicaria, lysimachia vulgaris, lycopus europaeus, phragmites australis, juncus effusus, galium palustre, iris pseudacorus, azolla filiculoides, ranunculus flammula, alisma plantago-aquatica, hottonia palustris, sparganium erectum, elodea nuttallii, hydrocotyle vulgaris, persicaria hydropiper, juncus tenuis, ranunculus repens, myriophyllum aquaticum, eleocharis palustris, glyceria maxima, cardamine pratensis, persicaria amphibia, phalaris arundinacea, eupatorium cannabinum, echinochloa crus-galli, potamogeton natans, juncus bulbosus, nymphaea marliacea, glyceria fluitans, gnaphalium uliginosum, lemna minor, epilobium ciliatum, lemna minuta, scutellaria galericulata, equisetum fluviatile, myosotis scorpioides, agrostis stolonifera, equisetum palustre, solanum dulcamara, urtica dioica, rumex hydrolapathum, cirsium palustre, juncus acutiflorus, typha latifolia, filipendula ulmaria, symphytum officinale, ranunculus sceleratus