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