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