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