My favourite prairie flower book (Vance/Jowsey) says that these wildflowers bloom from July through September. Early blooms offers a new way of looking at these flowers.
|Prairie Coneflower © SB|
Instead of focussing on the ray florets (aka petals), look closely at the newly opening yellow and purplish-brown disk florets around the centre column. (Yes, there is a bug in there, too.)
|Close-up of coneflower disk florets © SB|