The tall yellow swamp sunflowers are some of the last flowers of the fall.  The bright golden yellow is a contrast to the copper sculptures they share the flower bed with in the back yard.

Helianthus angustifolius, is also known as the narrow-leaved sunflower, narrow-leaf sunflower or swamp sunflower.  It is one of the fall blooming perennial flowers in my garden.  The multi-branch stems have many long thin rough and sandpapery leaves.  Over the years, individual plants have become small clumps in the flower beds.  

Their tall stalks lean toward the sun, contesting ownership of the walkway in the front yard.  They wave in the wind attracting bees and butterflies, and slowly shed their petals.

Swamp sunflowers spend the summer growing tall, taller than any other perennial in my flower beds.  When they are ready to bloom in fall most are 6 feet tall.  They are this tall even though I cut them back in Summer before the buds form.