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