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