Helianthus angustifolius (Swamp Sunflower) is a species of perennial herb in the family Asteraceae. They have a self-supporting growth form. They are native to The Contiguous United States, Eastern North America, and North America. They have simple, broad leaves and yellow flowers. Flowers are visited by Andrena accepta, Honey bee, painted lady, and Transverse Flower Fly. Individuals can grow to 5.6 feet.
EOL has data for 71 attributes, including: