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