• The most familiar sunflower is Helianthus annuus (from the Greek words helios, meaning “sun,” anthos, meaning “flower,” and annus, meaning “year”).
• The genus Helianthus contains about 67 species and is native to the Americas. More than 60 sunflower species grow in the United States.
• Sunflower plants were domesticated around 1,000 B.C. by western Native American tribes, who then carried them eastward and southward. The plants were used extensively for food,...