This plant seems to have many names and uses. Some call it Thorn-Apple, or Sacred Datura, or even Jimson Weed. The entire plant is poisonous, but portions of the plant are used in modern pharmaceuticals for things like motion sickness medication and to counteract muscle spasms. Not surprisingly, Native Americans were also aware of the many medicinal benefits of this plant.
It is about the only thing blooming in Anza-Borrego right now, this plant will bloom most the summer. We should be back in Alaska Saturday night, it will be a little while before flowers begin blooming there.
I used my truck to shade the flower from the bright, harsh sun light. Below is the same flower in the direct sun for comparison – I think you can see the advantage of the shade.