The root is not suitable for eating it is very bitter and low protein value. However, it was used to dye leather red. Because of its high tannin content, it was used in herbal medicine as an astringent. It was also used as an extract to produce a bitter liqueur in Bavaria the Black forest region , known as Blutwurz.
Courtesy of Olivier Prichard CC BY- SA 3.0 license.
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