my first photo of a JT if you don't count the ones I shot along the highway years ago.

https://www.flowersociety.org/jt_botanical.htm Archaeological evidence indicates that the Joshua Tree dates back to the Pliocene Epoch, some two million years ago, when the climate was more moist and warm, and its habitat more extensive.
Native Americans knew the Joshua tree as a source of food and fiber. The flowers were considered a sweet delicacy, roasted over a fire. The leaves were used for baskets and cordage.