Romneya Harv is a species of flowering plant in the poppy family, Papaveraceae, native to southern California and northern Mexico. It is commonly known as Matilija poppy or fried egg plant due to its large, white, crepe-paper like flowers with a bright yellow center resembling a fried egg. The plant can grow up to 6-8 feet in height and spread up to 4-6 feet wide.