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