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