(alongside Hwy-93) during your drive from Wickenburg, Arizona to the Badlands. This picture was taken off the Joshua Tree Parkway, located north of Wickenburg. The Joshua Tree Parkway identifies a road within a dense Joshua Tree forest sporting the largest average tree size (well, Joshua Trees) I've seen anywhere.
The Joshua Tree is a species belonging to the genus Yucca and it's no surprise to see a variety of Yucca plants wherever Joshua Trees reside.