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