Lycopodium japonicum is a common species of plant in the
genusLycopodium in the
clubmoss family. It is widespread in China, Japan and countries of Southern Asia. It has been used in
traditional Chinese medicine for the treatment of sprains, strains and myasthenia, and research is ongoing into its efficacy.[3] A type of
alkaloid with an unusual structure, labelled lycojaponicumins A through E, were isolated from the plant in 2012.[4][5]
Chemical structures of lycojaponicumins A, B, and C