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