The Tobacco is a tropical and semi-tropical plant commercially grown for its leaves and stems, which are rolled into cigars, shredded for use in cigarettes and pipes, processed for chewing or ground into snuff, a fine powder that is inhaled through the nose. Tobacco is the source of nicotine, an addictive drug that is also the basis for many insecticides. Tobacco is a member of the nightshade family with the generic name 'Nicotiana'. There are more than 70 species of tobacco of which 45 are native to the Americas.
Special Note : The tobacco plant is one of the most important commercial non-food crops grown in the world today. Mature tobacco plants, reaching one to three meter (3 to 10 feet), produce between 10 and 20 broad leaves. These are dried, cured and used to produce cigarettes, cigars and pipe and chewing tobaccos.
