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