be, arr. tongeren, pinus sylvestris, prunus serotina, avenella flexuosa, betula pendula, vaccinium myrtillus, quercus robur, deschampsia flexuosa, quercus rubra, sorbus aucuparia, dryopteris carthusiana, frangula alnus, molinia caerulea, fagus sylvatica, dryopteris dilatata, calluna vulgaris, pseudotsuga menziesii, pinus nigra, carex pilulifera, picea abies, pteridium aquilinum, betula pubescens, lonicera periclymenum, castanea sativa, ilex aquifolium, ceratocapnos claviculata, quercus petraea, galium saxatile, agrostis capillaris, amelanchier lamarckii, larix kaempferi, pinus strobus, vaccinium vitis-idaea, rumex angiocarpus, teucrium scorodonia, melampyrum pratense, rumex acetosella, holcus mollis, juncus effusus, luzula pilosa, rubus idaeus, erica tetralix, larix decidua, digitalis purpurea, maianthemum bifolium, populus tremula, moehringia trinervia, oxalis acetosella, rubus plicatus, cytisus scoparius, acer pseudoplatanus