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