This is a Desert Chicory, a Tobacco-weed or a Tackstem. The white petals look the same on all three plants. I'm going with the Tackstem for my desert flower guide book states it grows from Death Valley down into the eastern Mojave and that is where we were. So Tackstem it is.
The Mojave Aster whose flowers can vary from blue violet to lavender to pinkish or nearly white.
The Wild-Heliotrope. I should have tried to get closer but it was so small.
A lovely little flower.
Pencil Cholla for the stalk is not much thicker than a pencil. I have some growing at home.
They are usually green and I have never seen a purple one like this before.