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