Helianthus Annuus, commonly known as the sunflower, is a flowering plant known for its large, yellow flower head. However, there are other ways to refer to this beautiful plant. Some synonyms for Helianthus Annuus include the common sunflower, annual sunflower, or just simply sunflower. These names all refer to the same plant known for its tall stalks and showy flowers. The name "Helianthus" comes from the Greek words "helios" meaning sun and "anthos" meaning flower. Overall, regardless of the name used to describe this stunning plant, it is sure to add a vibrant splash of color to any garden.