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