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