text: calluna vulgaris, ceratodon purpureus, pinus sylvestris, quercus petraea, quercus robur, vaccinium myrtillus, betula pendula, calamagrostis epigejos, carex pilulifera, cytisus scoparius, dicranum polysetum, poa pratensis, pteridium aquilinum, rumex acetosella, agrostis capillaris, luzula campestris, pilosella officinarum, populus tremula, potentilla erecta, pseudoscleropodium purum, rubus idaeus, sorbus aucuparia