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