Brickellia floribunda

Brickellia floribunda (Chihuahuan brickellbush) is a North American species of flowering plants in the daisy family. It is native to northern Mexico (Baja California Sur, Sonora and Chihuahua) and the south-western United States (Arizona and New Mexico).
"Brickellia floribunda" is a branching shrub up to 200 cm (80 inches) tall. The plant produces many small flower heads with white or pale yellow-green disc florets but no ray florets.