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