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