be, arr. tongeren, prunus serotina, quercus robur, quercus rubra, pinus sylvestris, sorbus aucuparia, betula pendula, avenella flexuosa, frangula alnus, deschampsia flexuosa, vaccinium myrtillus, amelanchier lamarckii, dryopteris dilatata, calluna vulgaris, fagus sylvatica, molinia caerulea, dryopteris carthusiana, castanea sativa, lonicera periclymenum, pseudotsuga menziesii, agrostis capillaris, carex pilulifera, pinus nigra, ceratocapnos claviculata, ilex aquifolium, betula pubescens, rumex angiocarpus, pteridium aquilinum, rumex acetosella, teucrium scorodonia, galium saxatile, robinia pseudoacacia, holcus mollis, picea abies, galeopsis tetrahit, larix kaempferi, cytisus scoparius, holcus lanatus, acer pseudoplatanus, sambucus nigra, corylus avellana, rhododendron ponticum, quercus petraea, agrostis vinealis, juncus tenuis, festuca filiformis, erica tetralix, populus tremula, impatiens parviflora, rubus idaeus, rubus gratus