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