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