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