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