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