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