text: pteridium aquilinum, pinus sylvestris, picea abies, calamagrostis villosa, rubus idaeus, betula pendula, frangula alnus, athyrium filix-femina, avenella flexuosa, carex brizoides, dicranella heteromalla, quercus robur, sorbus aucuparia, vaccinium myrtillus, dryopteris carthusiana, maianthemum bifolium, plagiothecium laetum, pohlia nutans, quercus rubra, vaccinium vitis-idaea