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