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