Sunflower is an inflorescence or a capitulum(Head), not a flower. In sunflowers, the peduncle is flattened, which is known as a receptacle. The inflorescence is surrounded by a whorl of bracts collectively called involucres. In the repository, two kinds of florets are present, ray florets and disc florets. Rays florets are zygomorphic, unisexual female, corolla ligulate or strap-shaped. Disc florets are actinomorphic, bisexual, corolla tubular, present in the centre. Ray florets are present towards the periphery, and disc florets are present in the centre, e.g., Compositae or Asteraceae family-sunflower or Helianthus, Tagetes or marigold and Dahlia. So knowing sunflowers as a flower was wrong.