text: quercus robur, oxalis acetosella, acer pseudoplatanus, dryopteris carthusiana, pinus sylvestris, rubus idaeus, prunus serotina, lonicera periclymenum, frangula alnus, avenella flexuosa, betula pubescens, sorbus aucuparia, calamagrostis epigejos, hedera helix, maianthemum bifolium, moehringia trinervia, picea abies, polytrichum formosum, viola riviniana, dryopteris filix-mas, epipactis helleborine, fagus sylvatica, galeopsis tetrahit, populus tremula