(Helianthus annuus L.) is one of the flowers from famous type of the Asteraceae , not only it's a beautiful flower it also produces oil. it is usually light orange or yellow with the big flower head (30 centimeter). This flower is a single flower which is formed by hundreds of small flower at the center. The flowers always faces or follow the sun. The French calls it tournesol or the sun follower.
10 Facts about Sun flower
Life Cycle of Sun flower