Daio (family Polygonaceae) - right (311 R)

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Uemura 09-10-2009 311.jpg

Museum number 311
Uemura number / title ; "Haze-some 25"
Folder location 4th shelf
Sample location right (311 R)
Fiber type cotton
Color pale ochre
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 Daio (), taken as a medicine for a stomachache, originates in a mountain region in the western part of China. There are different plants of same species, including Madaio (Rumex madaio Makino); Karadaio (Rheum rhabarbarum L.); Gishigishi (Rumex japonicus Houtt.) ; and Yamatodaio.
Uemura's date Kyoto