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