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