be, arr. tongeren, pinus sylvestris, calluna vulgaris, avenella flexuosa, deschampsia flexuosa, betula pendula, molinia caerulea, vaccinium myrtillus, carex pilulifera, quercus robur, prunus serotina, rumex acetosella, rumex angiocarpus, frangula alnus, quercus rubra, agrostis capillaris, sorbus aucuparia, erica tetralix, dryopteris carthusiana, fagus sylvatica, galium saxatile, juncus effusus, betula pubescens, dryopteris dilatata, pseudotsuga menziesii, pteridium aquilinum, ceratocapnos claviculata, pinus nigra, castanea sativa, agrostis vinealis, festuca filiformis, danthonia decumbens, spergula morisonii, teucrium scorodonia, picea abies, holcus lanatus, ilex aquifolium, logfia minima, lonicera periclymenum, senecio sylvaticus, luzula campestris, juncus bulbosus, hypochaeris radicata, juncus squarrosus, hypericum perforatum, holcus mollis, larix kaempferi, eriophorum angustifolium, vaccinium vitis-idaea, cytisus scoparius, erigeron canadensis