Brickellia simplex, the Sonoran brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to northern Mexico (Chihuahua, Sonora, Coahuila) and the southwestern United States (New Mexico, Arizona).

Brickellia simplex is a branching shrub up to 60 cm (24 inches) tall, growing from a woody caudex. It produces many small flower heads with yellow disc florets but no ray florets.

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