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