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