Resembling a gigantic weed, lemongrass is an aromatic tropical plant with long, slender blades that can grow to a height of 5 ft (1.5 m). Believed to have a wide range of therapeutic effects, the herb has been used for centuries in South America and India and has also become popular in the United States. Aside from folk medicine, lemongrass is a favorite ingredient in Thai cuisine and dishes that boast a tangy, Asian flavor. While there are several species of lemongrass, Cymbopogon citratus is the variety most often recommended for medicinal purposes. Native to Southeast Asia, lemongrass can also be found growing in India, South America, Africa, Australia, and the United States. Only the fresh or dried leaves of lemongrass, and the essential oil derived from them, are used as a drug. Cymbopogon citratus, which belongs to the Poaceae family of plants, is also referred to as West Indian lemongrass.More recently, lemongrass has been shown to have antimutagenic properties; that is, researchers have found that it is able to reverse chemically induced mutations in certain strains of bacteria.While they may not be aware of it, most Americans have already tried lemongrass in one form or another. Citral, a key chemical found in Cymbopogon citratus, is an ingredient in a variety of foods and beverages (including alcohol). It can be found in candies, puddings, baked goods, meat products, and even in certain fats and oils. Citral is a pale yellow liquid that evaporates rapidly at room temperature. Lemongrass is also used as a fragrance enhancer in many perfumes, soaps, and detergents.Not to be confused with lemon balm, which is an entirely different herb, lemongrass is considered by herbalists to have several useful properties, including antibacterial, antifungal, and fever-reducing effects. Some of these claims have been supported by animal and laboratory studies. Researchers demonstrated that lemongrass was effective against 22 strains of bacteria and 12 types of fungi. Scientific research has also bolstered the herb's reputation as an analgesic and sedative.
