Romneya is a genus of flowering plants belonging to the poppy family (Papaveraceae). There are two species in the genus Romneya, which was named for Irish astronomer John Thomas Romney Robinson. They are known commonly as Matilija poppies, bush poppies, California poppies, or tree poppies. The common name "Matilija" is said to come from the Chumash leader, Chief Matilija. They are also known as the "fried egg flower" or the "fried egg plant" due to their bright yellow stamen, which creates the image of a sunny-side-up egg. They are native to chaparral and coastal scrub habitats in Southern California and Baja California.