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