de, mettmann, fagus sylvatica, quercus robur, sorbus aucuparia, dryopteris carthusiana, lonicera periclymenum, betula pendula, avenella flexuosa, deschampsia flexuosa, carpinus betulus, quercus rubra, prunus serotina, frangula alnus, pinus sylvestris, vaccinium myrtillus, pteridium aquilinum, carex pilulifera, molinia caerulea, acer pseudoplatanus, quercus petraea, moehringia trinervia, teucrium scorodonia, holcus mollis, betula pubescens, oxalis acetosella, dryopteris dilatata, luzula pilosa, corylus avellana, convallaria majalis, maianthemum bifolium, athyrium filix-femina, rubus idaeus, anemone nemorosa, milium effusum, juncus effusus, deschampsia cespitosa, hedera helix, fraxinus excelsior, ilex aquifolium, agrostis capillaris, impatiens parviflora, galeopsis tetrahit, polygonatum multiflorum, castanea sativa, poa nemoralis, rabelera holostea, picea abies, urtica dioica, scrophularia nodosa, populus tremula, sambucus nigra