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