Days in upper 80s to upper 90s, the natives keep blooming.
Native Plants in Urban Places, Capen Park, Columbia, Missouri
Capen Park Native Plant and Rain Garden, maintained by Missouri Master Naturalist Program
Days in upper 80s to upper 90s, the natives keep blooming.
Native Plants in Urban Places, Capen Park, Columbia, Missouri 
grey-head coneflower
American bellflower
I think another name for this is germander. I hope these comments stay with the flower I am looking at so this makes sense. . .