Helianthus decapetalus (Thin-leaved Sunflower)

The Thin-leaved Sunflower is a perennial plant with slender and thin leaves. It belongs to the Helianthus genus and is known for its yellow sunflower-like blooms. This plant can reach a height of 4 to 6 feet and has a spread similar to its height. It is a hardy plant that thrives in zones 5 to 9.