Helenium flexuosum /Aster Family
These flowers have purple disk flowers. Sneezeweeds get their name from an unusual practice of early settlers. People once thought sneezing could expel the "evil spirits" which they believed caused illnesses. The dried leaves of the sneezeweeds were sniffed up the nose to cause sneezing. Ironically, their sneezing probably spread germs to make even more people sick!
Where seen: Great Smoky Mountains NP, Frozen Head SP