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