The rhizome of this plant has traditionally been used to obtain the red pigment alizarin. [1] Alazarin gives its red color to a textile dye known as Rose madder. It was also used as a colorant, especially for paint, that is referred to as Madder lake.
Scientific classification
Order: Gentianales Family: Rubiaceae Tribe: Rubieae Genus: Rubia Species: R. tinctorum
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See also
References
External links
- Rubia tinctorum Wikipedia