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