Heterotheca grandiflora is a species of flowering plant in the daisy family known by the common name silk-grass goldenaster or 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.
Heterotheca grandiflora is a tall, bristly, glandular plant exceeding a meter (40 inches) in height and ...