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