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