This wildflower is native to central and eastern portions of North America. When you recognize it, leave a comment with its common name, scientific name and a story about your connection with it.
ANSWER (subsequently added to this post to facilitate the “search” function for these images): Purple coneflower (Echinacea purpurea)
Also, read the blog post and watch the plant portrait video for Purple coneflower (Echinacea purpurea).