de, städteregion aachen, fagus sylvatica, picea abies, vaccinium myrtillus, avenella flexuosa, deschampsia flexuosa, dryopteris carthusiana, luzula luzuloides, quercus petraea, pinus sylvestris, carex pilulifera, sorbus aucuparia, abies alba, oxalis acetosella, betula pendula, pteridium aquilinum, quercus robur, rubus idaeus, molinia caerulea, dryopteris dilatata, frangula alnus, athyrium filix-femina, juncus effusus, galium saxatile, calluna vulgaris, digitalis purpurea, luzula pilosa, luzula sylvatica, holcus mollis, deschampsia cespitosa, ilex aquifolium, sambucus racemosa, lonicera periclymenum, acer pseudoplatanus, teucrium scorodonia, agrostis capillaris, galeopsis tetrahit, melampyrum pratense, betula pubescens, carpinus betulus, senecio ovatus, maianthemum bifolium, dryopteris filix-mas, hypericum pulchrum, anemone nemorosa, carex remota, milium effusum, festuca altissima, cytisus scoparius, alnus glutinosa, lysimachia nemorum