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