Heterotheca grandiflora

Heterotheca grandiflora is a species of flowering plant in the daisy family known by the common name Silk-grass goldenasteror telegraphweed. It is native to the southwestern United States (California, Nevada, Utah, Arizona) and northwestern Mexico (Baja California), but it can be found in other areas as an introduced species, such as Hawaii. It is often a roadside weed even where it is native.