be, arr. leuven, castanea sativa, quercus rubra, quercus robur, lonicera periclymenum, prunus serotina, sorbus aucuparia, acer pseudoplatanus, fagus sylvatica, corylus avellana, betula pendula, frangula alnus, teucrium scorodonia, hedera helix, polygonatum multiflorum, pteridium aquilinum, vaccinium myrtillus, dryopteris dilatata, convallaria majalis, sambucus nigra, prunus avium, ilex aquifolium, dryopteris carthusiana, carex pilulifera, deschampsia flexuosa, pinus sylvestris, avenella flexuosa, anemone nemorosa, betula pubescens, hyacinthoides non-scripta, carpinus betulus, molinia caerulea, fraxinus excelsior, luzula pilosa, holcus mollis, robinia pseudoacacia, athyrium filix-femina, mespilus germanica, lamium galeobdolon, quercus petraea, maianthemum bifolium, calluna vulgaris, crataegus monogyna, agrostis capillaris, salix caprea, viola riviniana, dryopteris filix-mas, juncus effusus, populus tremula, arum maculatum, vinca minor