Henna, a tropical shrub native to southern and western Asia, Australia, and North Africa. It is also known as the mignonette tree and Egyptian privet. Henna is grown in Florida and California as an ornamental plant.
Henna grows 6 to 25 feet (1.8 to 7.6 m) high. It has small, lance-shaped leaves that grow opposite each other on the stem. The fragrant flowers, which grow in loose clusters, are white, red, or rose-pink. An orange-red dye is made from the dried, powdered leaves. Henna dye has been used by various peoples since ancient times to color parts of the body and animal skins. At one time it was a common hair dye in North America.
Henna is Lawsonia inermis of the loosestrife family, Lythraceae.