be, arr. tongeren, quercus rubra, pinus sylvestris, quercus robur, prunus serotina, betula pendula, frangula alnus, avenella flexuosa, vaccinium myrtillus, sorbus aucuparia, deschampsia flexuosa, molinia caerulea, castanea sativa, calluna vulgaris, lonicera periclymenum, fagus sylvatica, dryopteris carthusiana, betula pubescens, dryopteris dilatata, carex pilulifera, amelanchier lamarckii, pteridium aquilinum, ilex aquifolium, teucrium scorodonia, ceratocapnos claviculata, pseudotsuga menziesii, pinus nigra, agrostis capillaris, erica tetralix, quercus petraea, holcus mollis, rumex acetosella, rumex angiocarpus, cytisus scoparius, melampyrum pratense, rhododendron ponticum, galium saxatile, pinus pinaster, pinus strobus, erica cinerea, robinia pseudoacacia, picea abies, populus tremula, larix kaempferi, festuca filiformis, corylus avellana, juncus effusus, hedera helix, digitalis purpurea, juncus tenuis, holcus lanatus