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