Family: Asteraceae Subfamily: Helianthoideae Tribe: Heliantheae Genus: Helianthus Species: H. annuus Binomial name Helianthus annuus L. Sunflower ( Helianthus annuus ) is an annual plant native to the Americas . It possesses a large inflorescence (flowering head). The sunflower is named after its huge, fiery blooms, whose shape and image are