be, arr. tongeren, quercus rubra, prunus serotina, quercus robur, sorbus aucuparia, castanea sativa, pinus sylvestris, betula pendula, frangula alnus, lonicera periclymenum, dryopteris dilatata, vaccinium myrtillus, molinia caerulea, dryopteris carthusiana, deschampsia flexuosa, amelanchier lamarckii, avenella flexuosa, fagus sylvatica, betula pubescens, calluna vulgaris, teucrium scorodonia, pteridium aquilinum, carex pilulifera, acer pseudoplatanus, ilex aquifolium, corylus avellana, juncus effusus, agrostis capillaris, robinia pseudoacacia, rhododendron ponticum, sambucus nigra, holcus mollis, galeopsis tetrahit, alnus glutinosa, athyrium filix-femina, pinus nigra, polygonatum multiflorum, ceratocapnos claviculata, hedera helix, pseudotsuga menziesii, larix kaempferi, juncus tenuis, geum macrophyllum, urtica dioica, potentilla indica, maianthemum bifolium, holcus lanatus, salix caprea, prunus avium, convallaria majalis, populus tremula