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