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