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