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