Probably a Schneider's Golden Aster (Heterotheca schneideri) found in the Devil's Backbone Open Space near Loveland, Colorado.

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Size: 2832px × 4256px
Location: US Hwy 34, Loveland, Colorado, USA
Photo credit: © Ken Barber / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aster, backbone, devils, golden, heterotheca, schneideri, wildflower