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 grows in many types of habitat, it tolerates disturbance, and it can become somewhat weedy. it is an introduced species in parts of Hawaii. Its distribution is apparently expanding.

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