be, arr. leuven, fagus sylvatica, quercus rubra, prunus serotina, castanea sativa, quercus robur, sorbus aucuparia, vaccinium myrtillus, pinus sylvestris, betula pendula, dryopteris carthusiana, carex pilulifera, lonicera periclymenum, dryopteris dilatata, pteridium aquilinum, frangula alnus, acer pseudoplatanus, molinia caerulea, avenella flexuosa, deschampsia flexuosa, teucrium scorodonia, ilex aquifolium, luzula pilosa, quercus petraea, athyrium filix-femina, pinus nigra, betula pubescens, calluna vulgaris, corylus avellana, convallaria majalis, juncus effusus, picea abies, pseudotsuga menziesii, carpinus betulus, hedera helix, holcus mollis, maianthemum bifolium, oxalis acetosella, larix kaempferi, agrostis capillaris, larix decidua, salix caprea, anemone nemorosa, sambucus nigra, polygonatum multiflorum, dryopteris filix-mas, moehringia trinervia, rubus idaeus, prunus avium, populus tremula, fraxinus excelsior