be, arr. tongeren, prunus serotina, pinus sylvestris, quercus robur, avenella flexuosa, sorbus aucuparia, betula pendula, quercus rubra, deschampsia flexuosa, vaccinium myrtillus, dryopteris carthusiana, frangula alnus, dryopteris dilatata, pinus nigra, calluna vulgaris, molinia caerulea, fagus sylvatica, amelanchier lamarckii, pseudotsuga menziesii, agrostis capillaris, carex pilulifera, lonicera periclymenum, betula pubescens, ceratocapnos claviculata, rumex angiocarpus, castanea sativa, galium saxatile, picea abies, rumex acetosella, ilex aquifolium, quercus petraea, pteridium aquilinum, vaccinium vitis-idaea, holcus mollis, larix kaempferi, rubus gratus, agrostis vinealis, acer pseudoplatanus, calamagrostis epigejos, rubus idaeus, galeopsis tetrahit, rubus plicatus, teucrium scorodonia, holcus lanatus, robinia pseudoacacia, carex arenaria, moehringia trinervia, impatiens parviflora, sambucus nigra, senecio sylvaticus, populus tremula