Unless you have visited the southern United States, you probably have never heard of Kudzu. Kudzu is a super-powered weed. It is a strong climbing plant. Once it gets started, Kudzu is almost impossible to stop. It climbs to the tops of the tallest trees. It can cover large buildings. Whole barns and farm houses have been known to disappear from view. Wherever it grows, its sick twisting stems are extremely hard to remove. Kudzu was once thought to be a helpful plant. It was brought from Asia to America to help protect the land from being swallowed by the sea. But the plant soon spread to places where it wasn't wanted. Farmers now have to fight to keep it from killing other plants. If someone could invent some use for Kudzu and remove it from southern farmland, his or her fortune would be assured.