Daio (family Polygonaceae) - right (308 R)

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Uemura 09-10-2009 308.jpg

Museum number 308
Uemura number / title ; "Haze-some 25"
Folder location 4th shelf
Sample location right (308 R)
Fiber type silk
Color brown
Dyestuff (Japanese common name) 大黄 : Daio
Plant part root / dried (?)
Dyestuff extraction boiled in water
Auxiliary agent in dye bath -
Mordant lime water
Other auxiliary agent -
Uemura's notes Use of this plant as medicine was recorded in the Shinnhonzoukyo () from 300 BC - 200 AD, China; ; the Honzwamyo () from the Engi era (901 -923 AD) , Japan; and the Engitenyakuryo () from the Heian period, Japan.
Uemura's date Kyoto