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