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