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