1911 Encyclopædia Britannica/Alkanet

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ALKANET (dim. from Span. alcaña, Arab. al-henna = henna, Egyptian privet, or Lawsonia inermis), a plant, Alkanna or Anchusa tinctoria, of the order Boraginaceae, also known as orchanet, dyer’s bugloss, Spanish bugloss or bugloss of Languedoc, which is grown in the south of France and on the shores of the Levant. Its root yields a fine red colouring matter which has been used to tint tinctures, oils, wines, varnishes, &c.