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