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