be, arr. tongeren, pinus sylvestris, betula pendula, avenella flexuosa, deschampsia flexuosa, calluna vulgaris, quercus robur, vaccinium myrtillus, molinia caerulea, frangula alnus, prunus serotina, sorbus aucuparia, quercus rubra, carex pilulifera, rumex angiocarpus, dryopteris carthusiana, rumex acetosella, agrostis capillaris, fagus sylvatica, dryopteris dilatata, erica tetralix, betula pubescens, pseudotsuga menziesii, castanea sativa, ceratocapnos claviculata, galium saxatile, lonicera periclymenum, pteridium aquilinum, ilex aquifolium, pinus nigra, teucrium scorodonia, holcus mollis, juncus effusus, festuca filiformis, holcus lanatus, amelanchier lamarckii, picea abies, senecio sylvaticus, galeopsis tetrahit, cytisus scoparius, quercus petraea, agrostis vinealis, plantago major, larix kaempferi, digitalis purpurea, juncus tenuis, stellaria media, hypericum perforatum, hypochaeris radicata, erigeron canadensis, rubus plicatus