be, arr. leuven, quercus robur, urtica dioica, sambucus nigra, galium aparine, populus canadensis, arrhenatherum elatius, prunus serotina, alnus glutinosa, holcus lanatus, glechoma hederacea, galeopsis tetrahit, crataegus monogyna, fraxinus excelsior, corylus avellana, heracleum sphondylium, quercus rubra, poa trivialis, betula pendula, cirsium arvense, ranunculus repens, sorbus aucuparia, frangula alnus, agrostis capillaris, dactylis glomerata, humulus lupulus, lonicera periclymenum, holcus mollis, angelica sylvestris, acer pseudoplatanus, prunus avium, filipendula ulmaria, phalaris arundinacea, tanacetum vulgare, calystegia sepium, hedera helix, geum urbanum, robinia pseudoacacia, ribes rubrum, elymus repens, prunus padus, lysimachia vulgaris, juncus effusus, symphytum officinale, phragmites australis, anthriscus sylvestris, dryopteris carthusiana, rumex acetosa, prunus spinosa, alopecurus pratensis, polygonatum multiflorum