In 1890, Romneya coulteri was nominated along with two other flowers to be the state flower of California. When the votes were counted, it lost rather handily.
I suppose I wouldn’t have voted for something that some people call the “fried-egg flower”, either. Most people, though, refer to it as Matilija poppy. I prefer this latter name, because I think it’s a beauty; I’d rather not think of a breakfast diner when I admire it.
Romneya coulteri has the largest flower of any plant native to California, according to Calflora.net. Considering that the California floristic province is a biodiversity hotspot, that’s an impressive little factoid.