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