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