be, arr. leuven, fagus sylvatica, castanea sativa, quercus rubra, acer pseudoplatanus, quercus robur, prunus serotina, sorbus aucuparia, dryopteris carthusiana, lonicera periclymenum, dryopteris dilatata, carex pilulifera, pteridium aquilinum, betula pendula, vaccinium myrtillus, athyrium filix-femina, pinus sylvestris, ilex aquifolium, avenella flexuosa, frangula alnus, luzula pilosa, corylus avellana, teucrium scorodonia, deschampsia flexuosa, convallaria majalis, carpinus betulus, hedera helix, juncus effusus, molinia caerulea, quercus petraea, oxalis acetosella, picea abies, fraxinus excelsior, anemone nemorosa, sambucus nigra, dryopteris filix-mas, polygonatum multiflorum, lamium galeobdolon, holcus mollis, pseudotsuga menziesii, prunus avium, betula pubescens, maianthemum bifolium, deschampsia cespitosa, milium effusum, larix decidua, urtica dioica, circaea lutetiana, pinus nigra, salix caprea, calluna vulgaris