Amauriopsis dissecta is a North American species of flowering plants in the daisy family known by the common names yellow ragweed and ragleaf bahia. It is native to the western United States as far north as the Black Hills of South Dakota and Wyoming, as well as in northern Mexico (Baja California, Chihuahua, Coahuila, Sonora). American botanist Asa Gray described the species as Amauria dissecta in 1849 from material collected in a valley between Guajuquilla and Mapimi in Chihuahua. It placed in the new genus Amauriopsis by Per Axel Rydberg in 1914.