Difference between revisions of "Gromwell root"

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A natural dye extract from the roots of the perennial Lithospermum plants, most common of which are L. erythrorhizon (Japan and China) and L. officinale (North America). The red-purple root of the Gromwell plant is extracted with water to produce a non-lightfast purple colorant composed primarily of the nathaquinone compound shikonin. Called waka or usu in Japan, this purple color was restricted to the Imperial family.  
 
A natural dye extract from the roots of the perennial Lithospermum plants, most common of which are L. erythrorhizon (Japan and China) and L. officinale (North America). The red-purple root of the Gromwell plant is extracted with water to produce a non-lightfast purple colorant composed primarily of the nathaquinone compound shikonin. Called waka or usu in Japan, this purple color was restricted to the Imperial family.  
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[[File:Gromwell_root.jpg|thumb|Gromwell root  (''Lithospermum erythrorhizon'')]]
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Examples from '''Uemera Dye Archive''':
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* http://cameo.mfa.org/wiki/Shikon_-_center_(3_C)
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* http://cameo.mfa.org/wiki/Shikon_-_left_(234_L)
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* http://cameo.mfa.org/wiki/Shikon_-_right_(234_R)
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* http://cameo.mfa.org/wiki/Shikon_-_top_(236_T)
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* http://cameo.mfa.org/wiki/Shikon_-_bottom_(236_B)
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* http://cameo.mfa.org/wiki/Shikon_-_right_(237_R)
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* http://cameo.mfa.org/wiki/Shikon_-_center_(238_C)
  
[[File:Gromwell_root.jpg|thumb|Gromwell root  (''Lithospermum erythrorhizon'')]]
 
 
See also [[puccoon]].
 
See also [[puccoon]].
  
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[[File:lithospermumpd1.jpg|thumb|Lithospermum spp.]]
 
[[File:lithospermumpd1.jpg|thumb|Lithospermum spp.]]
== Hazards and Safety ==
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== Risks ==
  
 
Poor lightfastness
 
Poor lightfastness
  
== Sources Checked for Data in Record ==
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==Resources and Citations==
  
* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "Boraginaceae." Encyclopædia Britannica Premium Service.  30 Sept. 2004 .
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "Boraginaceae." Accessed 30 Sept. 2004 .
  
 
* Website: http://www.reconstructinghistory.com/japanese/dyes.html
 
* Website: http://www.reconstructinghistory.com/japanese/dyes.html

Latest revision as of 07:26, 9 August 2022

Gromwell root (Lithospermum erythrorhizon)

Description

A natural dye extract from the roots of the perennial Lithospermum plants, most common of which are L. erythrorhizon (Japan and China) and L. officinale (North America). The red-purple root of the Gromwell plant is extracted with water to produce a non-lightfast purple colorant composed primarily of the nathaquinone compound shikonin. Called waka or usu in Japan, this purple color was restricted to the Imperial family.

Gromwell root (Lithospermum erythrorhizon)

Examples from Uemera Dye Archive:

See also Puccoon.

Synonyms and Related Terms

murasaki (Jap.); shikonin; waka; usu; redroot; bloodroot ; Lithospermum erythrorhizon; Lithospermum officinale (stoneseed)

Lithospermum spp.

Risks

Poor lightfastness

Resources and Citations