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