Berlandiera lyrata (Chocolate Flower)
From CONPS: This perennial has mounded, coarse, gray-green foliage. and a distinct chocolate aroma. Flower heads have yellow rays surrounding a maroon central disk. The numerous, daisy-like blossoms bloom spring through early fall. 12 "- 15" tall and 18 -24 in width.
A cold and drought tolerant found in dry places in the southeastern CO plains on roadsides, alkali flats and slopes.