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