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