be, arr. leuven, quercus robur, holcus lanatus, prunus serotina, arrhenatherum elatius, agrostis capillaris, quercus rubra, ranunculus repens, populus canadensis, urtica dioica, frangula alnus, holcus mollis, betula pendula, rumex acetosa, sorbus aucuparia, tanacetum vulgare, juncus effusus, lonicera periclymenum, cirsium arvense, poa trivialis, sambucus nigra, heracleum sphondylium, alnus glutinosa, galeopsis tetrahit, achillea millefolium, galium aparine, dactylis glomerata, corylus avellana, anthoxanthum odoratum, festuca rubra, molinia caerulea, lolium perenne, angelica sylvestris, stellaria graminea, plantago lanceolata, hypericum perforatum, pinus sylvestris, ranunculus acris, glechoma hederacea, alopecurus pratensis, elymus repens, rumex angiocarpus, amelanchier lamarckii, lysimachia vulgaris, castanea sativa, phalaris arundinacea, rumex acetosella, filipendula ulmaria, fraxinus excelsior, crataegus monogyna, robinia pseudoacacia