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