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