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