Henna as it is called in Moslem countries or Mehendi as it is known in India is named in Latin as Lawsonia inermis. This is a plant extensively grown and used in UAE, Africa and India generally for cosmetic purposes as it is considered highly auspicious. Henna is also used as a medicinal plant by Unani and ayurvedic doctors with excellent results.
http://ezinearticles.com/?Henna-Tattoos---Mehndi-Pattern-Designs&id=989547 - Feb 16, 2008