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