Perityle emoryi is a species of flowering plant in the aster family known by the common name Emory's rockdaisy.

It is native to the Southwestern United States, northwestern Mexico, and western South America.

It is a common wildflower of the deserts, and can also be found in the coastal regions of the Californias, Sonora, and Sinaloa.

It is an annual herb growing 2 to 60 centimeters tall, its stem small, delicate, and simple, or thick, branching, and sprawling.

The alternately arranged leaves have blades of various shapes which are toothed or divided into lobes and borne on petioles.