be, arr. tongeren, pinus sylvestris, calluna vulgaris, avenella flexuosa, frangula alnus, prunus serotina, betula pendula, quercus robur, molinia caerulea, deschampsia flexuosa, quercus rubra, sorbus aucuparia, vaccinium myrtillus, lonicera periclymenum, teucrium scorodonia, castanea sativa, agrostis capillaris, carex pilulifera, pteridium aquilinum, rumex acetosella, rumex angiocarpus, pinus nigra, betula pubescens, quercus petraea, erica tetralix, cytisus scoparius, erica cinerea, ilex aquifolium, dryopteris carthusiana, fagus sylvatica, festuca filiformis, pinus pinaster, holcus mollis, dryopteris dilatata, ceratocapnos claviculata, galium saxatile, agrostis vinealis, amelanchier lamarckii, pseudotsuga menziesii, hypericum perforatum, danthonia decumbens, holcus lanatus, melampyrum pratense, populus tremula, calamagrostis epigejos, genista pilosa, digitalis purpurea, corynephorus canescens, ulex europaeus, senecio sylvaticus, robinia pseudoacacia