be, arr. leuven, quercus robur, castanea sativa, sorbus aucuparia, lonicera periclymenum, quercus rubra, frangula alnus, betula pendula, prunus serotina, fagus sylvatica, deschampsia flexuosa, avenella flexuosa, hedera helix, pinus sylvestris, ilex aquifolium, vaccinium myrtillus, dryopteris dilatata, acer pseudoplatanus, calluna vulgaris, corylus avellana, teucrium scorodonia, carex pilulifera, betula pubescens, pteridium aquilinum, molinia caerulea, sambucus nigra, agrostis capillaris, polygonatum multiflorum, holcus mollis, dryopteris carthusiana, amelanchier lamarckii, prunus avium, cytisus scoparius, robinia pseudoacacia, rumex angiocarpus, populus tremula, rumex acetosella, holcus lanatus, quercus petraea, fraxinus excelsior, pseudotsuga menziesii, galeopsis tetrahit, carpinus betulus, athyrium filix-femina, ceratocapnos claviculata, convallaria majalis, festuca filiformis, salix caprea, dryopteris filix-mas, hyacinthoides non-scripta, maianthemum bifolium