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