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