Such characteristic is not seen in most of the other flowers. Then why has Nature made sunflower different? A number of flowers grow on other plants and at least some of the flowers clustering the plant receive the sunlight directly to display their colors and attract the insects engaged in providing pollination service. But sunflower plant has only one flower on its stem. As pollination is entirely dependent upon the flower the sunflower plant having only one flower has to display it conspicuously in the sunlight! Nature has made this special arrangement for sunflower only for this purpose.