be, arr. leuven, quercus rubra, castanea sativa, prunus serotina, fagus sylvatica, quercus robur, sorbus aucuparia, acer pseudoplatanus, pinus sylvestris, betula pendula, lonicera periclymenum, dryopteris dilatata, ilex aquifolium, vaccinium myrtillus, dryopteris carthusiana, frangula alnus, avenella flexuosa, rhododendron ponticum, deschampsia flexuosa, carex pilulifera, potentilla indica, pseudotsuga menziesii, amelanchier lamarckii, teucrium scorodonia, pteridium aquilinum, corylus avellana, robinia pseudoacacia, sambucus nigra, hedera helix, convallaria majalis, pinus nigra, molinia caerulea, impatiens parviflora, carpinus betulus, betula pubescens, lamium galeobdolon, athyrium filix-femina, prunus avium, polygonatum multiflorum, calluna vulgaris, larix kaempferi, fraxinus excelsior, picea abies, plantago subulata, luzula pilosa, quercus petraea, hyacinthoides non-scripta, maianthemum bifolium, galeopsis tetrahit, juncus tenuis, urtica dioica