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