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