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