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