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