be, arr. leuven, quercus rubra, quercus robur, prunus serotina, sorbus aucuparia, castanea sativa, fagus sylvatica, lonicera periclymenum, vaccinium myrtillus, frangula alnus, betula pendula, dryopteris carthusiana, dryopteris dilatata, acer pseudoplatanus, pinus sylvestris, pteridium aquilinum, deschampsia flexuosa, carex pilulifera, avenella flexuosa, molinia caerulea, ilex aquifolium, betula pubescens, corylus avellana, hedera helix, teucrium scorodonia, luzula pilosa, athyrium filix-femina, polygonatum multiflorum, convallaria majalis, maianthemum bifolium, juncus effusus, holcus mollis, larix kaempferi, carpinus betulus, sambucus nigra, calluna vulgaris, quercus petraea, pseudotsuga menziesii, anemone nemorosa, oxalis acetosella, prunus avium, agrostis capillaris, amelanchier lamarckii, picea abies, fraxinus excelsior, galeopsis tetrahit, rubus idaeus, populus tremula, alnus glutinosa, milium effusum, dryopteris filix-mas