be, arr. tongeren, pinus sylvestris, quercus robur, quercus rubra, prunus serotina, vaccinium myrtillus, betula pendula, sorbus aucuparia, avenella flexuosa, deschampsia flexuosa, fagus sylvatica, frangula alnus, molinia caerulea, dryopteris carthusiana, dryopteris dilatata, calluna vulgaris, castanea sativa, carex pilulifera, pseudotsuga menziesii, lonicera periclymenum, pteridium aquilinum, ilex aquifolium, betula pubescens, pinus nigra, quercus petraea, picea abies, agrostis capillaris, amelanchier lamarckii, teucrium scorodonia, larix kaempferi, galium saxatile, holcus mollis, ceratocapnos claviculata, rumex angiocarpus, juncus effusus, acer pseudoplatanus, rumex acetosella, melampyrum pratense, corylus avellana, erica tetralix, convallaria majalis, vaccinium vitis-idaea, luzula pilosa, rubus plicatus, rubus idaeus, hedera helix, pinus strobus, cytisus scoparius, maianthemum bifolium, larix decidua, populus tremula