This is a Desert Pricklepoppy. The top picture shows how it looks in a rare moment of stillness, but the bottom picture is what it usually looked like, with the petals dancing in the breeze.

This was the prettiest flower we saw, although it's not very friendly. Not only is it covered with spines, but it's poisonous too. So if you see one, use your telephoto to get a picture of it. <grin>