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