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