be, arr. leuven, quercus robur, populus canadensis, prunus serotina, holcus lanatus, quercus rubra, heracleum sphondylium, arrhenatherum elatius, ranunculus repens, angelica sylvestris, urtica dioica, filipendula ulmaria, juncus effusus, alopecurus pratensis, cirsium arvense, alnus glutinosa, agrostis capillaris, poa trivialis, rumex acetosa, sambucus nigra, glechoma hederacea, corylus avellana, cirsium palustre, betula pendula, stellaria graminea, sorbus aucuparia, galium aparine, lonicera periclymenum, ranunculus acris, symphytum officinale, fraxinus excelsior, galeopsis tetrahit, frangula alnus, cerastium fontanum, castanea sativa, cardamine pratensis, lysimachia vulgaris, tanacetum vulgare, holcus mollis, phalaris arundinacea, phragmites australis, crataegus monogyna, equisetum palustre, lythrum salicaria, alnus incana, anthoxanthum odoratum, calystegia sepium, acer pseudoplatanus, juncus conglomeratus, juncus acutiflorus, dactylis glomerata