In this purple coneflower (Echinacea purpurea) seed head, the number of clockwise spirals is a Fibonacci number, as is the number of counterclockwise spirals. Fascinating!
Taken May 2013 at the Fort Worth Botanic Garden. This DFW gem is also home to a beautiful Japanese garden.
Intrigued? Check out Gareth E. Roberts’ fantastic presentation, Fun with Fibonacci Numbers: Applications in Nature and Music.