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