Geranium thunbergii explained

Geranium thunbergii (Thunberg's geranium) is a cranesbill species that is commonly known as Japanese geranium or Japanese cranesbill. It is one of the most popular folk medicines and also an official antidiarrheic drug in Japan.^[1] It is called ゲンノショウコ.

Geraniin is an ellagitannin found in G. thunbergii.^[1]

Notes and References

1. Luger . P. . Weber . M. . Kashino . S. . Amakura . Y. . Yoshida . T. . Okuda . T. . Beurskens . G. . Dauter . Z. . Structure of the Tannin Geraniin Based on Conventional X-ray Data at 295 K and on Synchrotron Data at 293 and 120 K . Acta Crystallographica Section B Structural Science . 1998 . 54 . 5 . 687–694 . 10.1107/S0108768198000081.