be, arr. leuven, quercus robur, prunus serotina, sorbus aucuparia, frangula alnus, quercus rubra, betula pendula, agrostis capillaris, lonicera periclymenum, holcus lanatus, pinus sylvestris, holcus mollis, juncus effusus, avenella flexuosa, deschampsia flexuosa, urtica dioica, ranunculus repens, molinia caerulea, galeopsis tetrahit, alnus glutinosa, dryopteris carthusiana, dryopteris dilatata, betula pubescens, amelanchier lamarckii, sambucus nigra, corylus avellana, rumex acetosa, arrhenatherum elatius, calluna vulgaris, rumex angiocarpus, lysimachia vulgaris, poa trivialis, populus canadensis, galium aparine, cirsium arvense, anthoxanthum odoratum, rumex acetosella, teucrium scorodonia, vaccinium myrtillus, angelica sylvestris, hypericum perforatum, castanea sativa, glechoma hederacea, cirsium palustre, tanacetum vulgare, heracleum sphondylium, athyrium filix-femina, stellaria graminea, achillea millefolium, festuca rubra, fraxinus excelsior