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