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