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