Helianthus angustifolius - sunflower of eastern North America having narrow leaves and found in bogsswamp sunflowerhelianthus, sunflower - any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays
Helianthus angustifolius
noun
Synonyms for Helianthus angustifolius
noun sunflower of eastern North America having narrow leaves and found in bogs