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