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