Difference between revisions of "Gromwell root"

From CAMEO
Jump to: navigation, search
(talk)
(Description)
Line 6: Line 6:
 
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.  
  
See also [http://cameo.mfa.org/materials/fullrecord.asp?name=puccoon puccoon].
+
See also [[puccoon]].
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==

Revision as of 10:22, 16 January 2014

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.

See also puccoon.

Synonyms and Related Terms

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

Lithospermum spp.

Hazards and Safety

Poor lightfastness

Additional Images


Authority

  • Encyclopedia Britannica, http://www.britannica.com Comment: "Boraginaceae." Encyclopædia Britannica. 2004. Encyclopædia Britannica Premium Service. 30 Sept. 2004 .

Retrieved from "http://cameo.mfa.org/index.php?title=Gromwell_root&oldid=44747"