be, arr. tongeren, calluna vulgaris, avenella flexuosa, pinus sylvestris, rumex acetosella, betula pendula, prunus serotina, molinia caerulea, rumex angiocarpus, frangula alnus, quercus robur, deschampsia flexuosa, agrostis capillaris, quercus rubra, carex pilulifera, castanea sativa, pteridium aquilinum, sorbus aucuparia, teucrium scorodonia, vaccinium myrtillus, erica tetralix, lonicera periclymenum, cytisus scoparius, ilex aquifolium, holcus mollis, betula pubescens, ceratocapnos claviculata, festuca filiformis, fagus sylvatica, dryopteris carthusiana, galium saxatile, hypericum perforatum, holcus lanatus, erica cinerea, hypochaeris radicata, digitalis purpurea, pseudotsuga menziesii, quercus petraea, ornithopus perpusillus, dryopteris dilatata, agrostis vinealis, juncus effusus, senecio sylvaticus, logfia minima, luzula campestris, pinus nigra, pinus pinaster, corynephorus canescens, danthonia decumbens, veronica officinalis, erodium cicutarium