be, arr. dendermonde, bidens frondosa, lycopus europaeus, lysimachia vulgaris, lythrum salicaria, alnus glutinosa, iris pseudacorus, crassula helmsii, urtica dioica, phragmites australis, juncus effusus, filipendula ulmaria, solanum dulcamara, galium palustre, cardamine pratensis, potentilla indica, symphytum officinale, quercus rubra, persicaria hydropiper, cirsium palustre, quercus robur, prunus serotina, impatiens glandulifera, ranunculus repens, epilobium ciliatum, nymphaea marliacea, ludwigia grandiflora, eupatorium cannabinum, angelica sylvestris, phalaris arundinacea, calystegia sepium, myriophyllum aquaticum, amelanchier lamarckii, humulus lupulus, glyceria maxima, caltha palustris, galinsoga quadriradiata, scirpus sylvaticus, rhododendron ponticum, scutellaria galericulata, juncus tenuis, carex acuta, alnus incana, poa trivialis, populus canadensis, sparganium erectum, equisetum palustre, calamagrostis canescens, galium aparine, holcus lanatus, heracleum sphondylium