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