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