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