The largest flower in the world is the Rafflesia arnoldii, native to the rainforests of Sumatra and Borneo. This remarkable plant can measure up to three feet in diameter and emit a strong odor resembling decaying flesh to attract its pollinators, primarily carrion flies. Rafflesia is a parasitic plant and does not have leaves, stems, or roots, relying entirely on its host vine for nutrients. Its striking appearance and unique characteristics make it a subject of interest for botanists and nature enthusiasts alike.