de, recklinghausen, fagus sylvatica, vaccinium myrtillus, avenella flexuosa, pinus sylvestris, deschampsia flexuosa, quercus robur, sorbus aucuparia, dryopteris carthusiana, betula pendula, prunus serotina, quercus rubra, dryopteris dilatata, carex pilulifera, picea abies, pteridium aquilinum, frangula alnus, pseudotsuga menziesii, ilex aquifolium, molinia caerulea, lonicera periclymenum, calluna vulgaris, pinus nigra, castanea sativa, betula pubescens, luzula pilosa, larix kaempferi, quercus petraea, acer pseudoplatanus, oxalis acetosella, rubus idaeus, ceratocapnos claviculata, juncus effusus, agrostis capillaris, galium saxatile, maianthemum bifolium, larix decidua, melampyrum pratense, holcus mollis, amelanchier lamarckii, vaccinium vitis-idaea, athyrium filix-femina, teucrium scorodonia, moehringia trinervia, calamagrostis epigejos, abies alba, hedera helix, rumex angiocarpus, convallaria majalis, milium effusum, dryopteris filix-mas