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