A thorny tree or shrub of the genus Lawsonia (L. alba). The fragrant white blossoms are used by the Buddhists in religious ceremonies. The powdered leaves furnish a red coloring matter used in the East to stain the nails and fingers, the manes of horses, etc.
- A tree or shrub (Lawsonia inermis) of the Middle East, having fragrant white or reddish flowers.
- A reddish-orange dyestuff prepared from the dried and ground leaves of this plant, used as a cosmetic dye and for coloring leather and fabrics.
- A moderate or strong reddish brown to strong brown.
- To dye (hair, for example) with henna.