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