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