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