These are the Dune Evening Primrose which I found at Anza Borrego State Park, California USA.
These desert wildflowers are quite abundant on the desert floor of this area right now.
They are found growing in the desert sand amongst other colorful wildflowers.
This is the Desert Lily also found at Anza Borrego State Park yesterday.
I will venture to say this flower is far less common since this is the only one I saw all day.