Isocoma rusbyi

Isocoma rusbyi, the Rusby's goldenbush, is a North American species of plants in the sunflower family. It has been found in the States of Arizona, Utah, New Mexico, and Colorado in the southwestern United States. Some of the populations lie inside Grand Canyon and Petrified Forest National Parks, others in the Glen Canyon National Recreation Area.
"Isocoma rusbyi" is a shrub up to 90 cm (3 feet) tall. Each flower head contains about 19-25 disc flowers but no ray flowers.