Tall Blazing Star or Rough Blazing Star [Liatris aspera] found off Brevard Road, Asheville, North Carolina on 2 July 2016. It’s a member of the Aster/Composite (Asteraceae) family. Newcomb’s Wildflower Guide, pages 412-413, states it blooms in summer and fall in dry open places.
USDA Plants Listing: Liatris aspera