be, arr. leuven, quercus robur, juncus effusus, ranunculus repens, holcus lanatus, populus canadensis, angelica sylvestris, filipendula ulmaria, urtica dioica, cirsium palustre, prunus serotina, lysimachia vulgaris, heracleum sphondylium, stellaria graminea, alnus glutinosa, rumex acetosa, arrhenatherum elatius, lythrum salicaria, quercus rubra, cerastium fontanum, agrostis capillaris, cirsium arvense, alopecurus pratensis, poa trivialis, equisetum palustre, cardamine pratensis, ranunculus acris, lotus pedunculatus, silene flos-cuculi, galeopsis tetrahit, juncus acutiflorus, persicaria hydropiper, lycopus europaeus, juncus conglomeratus, phalaris arundinacea, iris pseudacorus, symphytum officinale, phragmites australis, scirpus sylvaticus, anthoxanthum odoratum, glechoma hederacea, galium palustre, betula pendula, bidens frondosa, galium aparine, tanacetum vulgare, sambucus nigra, carex acuta, calystegia sepium, plantago lanceolata, juncus tenuis