Appearance
Henna is a tall shrub or small tree, 2.6 m high. It is glabrous, multibranched with spine tipped branchlets. Leaves are opposite, entire, glabrous, sub-sessile, elliptical, and broadly lanceolate , acuminate, having depressed veins on the dorsal surface. Henna flowers have four sepals and a 2 mm calyx tube with 3 mm spread lobes. Petals are obvate, white or red stamens inserted in pairs on the rim of the calyx tube. Ovary is four celled, style up to 5 mm long and erect. Fruits are small, brownish capsules, 4–8 mm in diameter, with 32–49 seeds per fruit, and open irregularly into four splits.Uses
Henna has been used since the Bronze Age to dye skin , hair, fingernails, leather, silk and wool. In several parts of the world it is traditionally used in various festivals and celebrations. There is mention of henna as a hair dye in Indian court records around 400 CE, in Rome during the Roman Empire, and in Spain during Convivencia. It was listed in the medical texts of the Ebers Papyrus and by Ibn Qayyim al-Jawziyya as a medicinal herb. In Morocco, wool is dyed and ornamented with henna, as are drumheads and other leather goods.Use of henna for body art has enjoyed a recent renaissance due to improvements in cultivation, processing, and the emigration of people from traditional henna-using regions.
For skin dyeing, a paste of ground henna is placed in contact with the skin from a few hours to overnight. Henna stains can last a few days to a month depending on the quality of the paste, individual skin type, and how long the paste is allowed to stay on the skin.
Henna also acts as an anti-fungal and a preservative for leather and cloth.
Henna flowers have been used to create perfume since ancient times, and henna perfume is experiencing a resurgence. Henna repels some insect pests and mildew.
Henna's coloring properties are due to lawsone, a burgundy organic compound that has an affinity for bonding with protein. Lawsone is primarily concentrated in the leaves, especially in the petioles of the leaf. Lawsone content in leaves is negatively correlated with the number of seeds in the fruits.
Cultural
Henna has been used as a cosmetic hair dye for 6,000 years. In Ancient Egypt, was known to have used it. It was commonly used for many centuries in areas of India, the Middle East, and Africa.In Ancient Egypt, Ahmose-Henttimehu 17th Dynasty : Henttimehu was probably a daughter of Seqnenre-Taa II and Ahmose-Inhapi. Smith reports that the mummy of Henttimehu own hair had been dyed a bright red at the sides, probably with henna.
In Europe, henna was popular among women connected to the aesthetic movement and the Pre-Raphaelite artists of England in the 1800s. The fashion for Orientalism led young women with a bohemian inclination to begin tinting their hair with henna. Dante Gabriel Rosetti's wife and muse, Elizabeth Siddal, had naturally bright red hair. Contrary to the cultural tradition in Britain that considered red hair unattractive, the Pre-Raphaelites fetishized red hair. Siddal was portrayed by Rosetti in many paintings that emphasized her flowing red hair.The other Pre-Raphaelites, including Frederic Leighton, Evelyn de Morgan, Anthony Frederick Augustus Sandys, and French painters such as Gaston Bussière and the Impressionists further popularized the association of henna-dyed hair and young bohemian women.
Opera singer Adelina Patti is sometimes credited with popularizing the use of henna in Europe in the late 1800s. Parisian courtesan Cora Pearl was often referred to as La Lune Rousse for dying her hair red. In her memoirs, she relates an incident when she dyed her pet dog's fur to match her own hair. By the 1950s, Lucille Ball popularized "henna rinse" as her character, Lucy Ricardo, called it on the television show I Love Lucy. It gained popularity among young people in the 1960s through growing interest in Eastern cultures.
Muslims also use henna as a dye for their hair and for the beards of males—following the tradition of their prophet Muhammad, who used to dye his beard with henna. It's considered a "sunnah" and akin to something fortunate/good. In one narration by him, he encouraged Muslim women to dye their nails with henna so their hands can be distinguished as feminine & from the hands of a male. Hence you will see this tradition greatly in the Middle East and Africa where women apply henna to their finger and toe nails, as well as their hands.
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