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