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