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