The world's largest flower has been discovered in Indonesia. The Western Sumatra's Natural Resources and Revision Centre says it has discovered about four feet in diameter in the jingles of Sumatra, a large flower called '' Rafflesia'' the largest ever found. In 1947 it was discovered a similar flower here, but this new flower was four inches wider. This flower is also called ''Monster Flower'' . It does not have the roots or leaves of the plant. It complements its food with its host plants and is visible only when its flower bloom on the host plant.