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