On the fern root

[ source ]" Zhejiang temmokus yam planting Zhi"
Pinyin name ] [ Duì Mǎě R Jué Gē n
[ ] as a source of Dryopteridaceae in Polystichum tsus-simense rhizome.
[ indications ] cure swollen red eyes.
[ usage] fresh Polystichum tsus-simense rhizome ( removing the hair ) one or two, boiling water, add sugar, morning and evening meals every day.
[ ]" * dictionary" excerpt
http://chinese-herbal-medicines-directory.blogspot.com/