be, arr. tongeren, pinus sylvestris, betula pendula, prunus serotina, avenella flexuosa, quercus robur, vaccinium myrtillus, sorbus aucuparia, deschampsia flexuosa, frangula alnus, quercus rubra, calluna vulgaris, dryopteris carthusiana, molinia caerulea, dryopteris dilatata, fagus sylvatica, pinus nigra, carex pilulifera, pseudotsuga menziesii, lonicera periclymenum, betula pubescens, amelanchier lamarckii, agrostis capillaris, galium saxatile, picea abies, ceratocapnos claviculata, castanea sativa, rumex angiocarpus, ilex aquifolium, pteridium aquilinum, rumex acetosella, vaccinium vitis-idaea, quercus petraea, erica tetralix, larix kaempferi, rubus plicatus, melampyrum pratense, holcus mollis, teucrium scorodonia, festuca filiformis, agrostis vinealis, rubus idaeus, carex arenaria, cytisus scoparius, juncus effusus, rubus gratus, populus tremula, calamagrostis epigejos, holcus lanatus, pinus strobus, empetrum nigrum