A few plants in the Mojave desert

This below is a Joshua tree.  They grow only in the Mojave desert, although similar plants grow in other deserts:

Below are some sort of yucca:

I just thought the plant below was cool the way the clouds behind it seemed to be mirroring it's pattern:

I don't know what this cactus below is, but it's large and very cool!

Don't know what this one is either, I liked the shape and the yellow of it:

There you have them, the largely unknown (to me!) plants of the Mojave!