be, arr. leuven, fagus sylvatica, castanea sativa, quercus rubra, acer pseudoplatanus, quercus robur, lonicera periclymenum, ilex aquifolium, sorbus aucuparia, prunus serotina, pteridium aquilinum, dryopteris dilatata, hedera helix, dryopteris carthusiana, athyrium filix-femina, carex pilulifera, corylus avellana, hyacinthoides non-scripta, vaccinium myrtillus, betula pendula, anemone nemorosa, luzula pilosa, carpinus betulus, fraxinus excelsior, polygonatum multiflorum, avenella flexuosa, milium effusum, lamium galeobdolon, oxalis acetosella, teucrium scorodonia, deschampsia flexuosa, circaea lutetiana, sambucus nigra, frangula alnus, pinus sylvestris, convallaria majalis, prunus avium, quercus petraea, dryopteris filix-mas, juncus effusus, betula pubescens, plantago subulata, carex remota, maianthemum bifolium, carex sylvatica, urtica dioica, mespilus germanica, holcus mollis, rhododendron ponticum, pseudotsuga menziesii, scrophularia nodosa