Matilija Poppy [Romneya coulteri] at the Santa Barbara Botanic Gardens

This flower looks like it is made of paper that someone crumpled and then flattened back out again. It is related to the Poppy. The day I took this picture was the first time I had ever seen one. They are quite a sight, it may be hard to tell because there is no context in this image for size, but this flower is about 6 inches across.