be, arr. tongeren, pinus sylvestris, prunus serotina, quercus rubra, quercus robur, avenella flexuosa, betula pendula, sorbus aucuparia, deschampsia flexuosa, frangula alnus, ceratocapnos claviculata, dryopteris dilatata, amelanchier lamarckii, molinia caerulea, dryopteris carthusiana, vaccinium myrtillus, calluna vulgaris, pseudotsuga menziesii, pinus nigra, agrostis capillaris, fagus sylvatica, betula pubescens, rumex acetosella, rumex angiocarpus, lonicera periclymenum, carex pilulifera, castanea sativa, ilex aquifolium, erica tetralix, juncus tenuis, larix kaempferi, galium saxatile, claytonia sibirica, agrostis vinealis, geum macrophyllum, impatiens parviflora, galeopsis tetrahit, rhododendron ponticum, juncus effusus, robinia pseudoacacia, holcus lanatus, pinus strobus, picea abies, rubus gratus, senecio sylvaticus, pteridium aquilinum, bidens frondosa, holcus mollis, digitalis purpurea, corynephorus canescens, erigeron canadensis