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