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