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