Helianthus Angustifolius is commonly known as Swamp Sunflower. Some synonyms for Helianthus Angustifolius include Narrow-leaved Sunflower, Willow-leaved Sunflower, and Swamp Sunflower Daisy. The name Helianthus is derived from the Greek words "helios" meaning sun and "anthos" meaning flower. The plant is native to North America and can grow up to 10 feet tall. Its bright yellow, daisy-like flowers bloom in the late summer and fall, providing a vibrant burst of color. Helianthus Angustifolius is often used in landscaping and is a popular choice for pollinator gardens due to its ability to attract bees, butterflies, and hummingbirds.