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