text: pteridium aquilinum, avenella flexuosa, pinus sylvestris, calluna vulgaris, fagus sylvatica, quercus petraea, betula pendula, carex pilulifera, dicranum polysetum, luzula pilosa, maianthemum bifolium, picea abies, rubus idaeus, vaccinium myrtillus, agrostis capillaris, atrichum undulatum, betula pubescens, calamagrostis arundinacea, ceratodon purpureus, corylus avellana, frangula alnus, galeopsis bifida, juncus effusus, luzula multiflora, oxalis acetosella, placynthiella oligotropha, pleurozium schreberi, pohlia nutans, polytrichum formosum, populus tremula, potentilla erecta, rubus fissus, rumex acetosella, solidago virgaurea, sorbus aucuparia, vaccinium vitis-idaea