Helianthus angustifolius (Swamp Sunflower) is a perennial herb that grows up to 5 feet (1.5 m) tall. It is often cultivated for its bright…
Helianthus angustifolius (Swamp Sunflower) is a perennial herb that grows up to 5 feet (1.5 m) tall. It is often cultivated for its bright…