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