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