Certified USDA Organic stevia powder in a convenient 1 lb. bag. Non-Irradiated Certified Organic by QAI. Botanical Name: Stevia Rebaudiana Bertoni. Origin: Paraguay. Stevia, also known as sweet leaf or sugar leaf, is a member of the sunflower family and native to South and Central America. It is 300 times as sweet as sugar and widely utilized as a sugar substitute.