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