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