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