Hymenopappus radiatus

Hymenopappus radiatus, the ray hymenopappus, is a North American species of flowering plant in the daisy family.

It is endemic to the state of Arizona, in the southwestern United States.

Description
Hymenopappus radiatus is a perennial herb up to 45 cm tall. One plant produces 6-8 flower heads per stem, each head 8 white ray flowers surrounding 30–50 yellow disc flowers.