and yes, this is desert - there is still very little precipitation compared to the east of the US, but as the hills and mountains are higher than the desert floor, they get a little bit more precipitation - and this spring was exceptionally wet, so everything is much greener than in an average year
as you can see, there's quite some variety of vegetation, from the prototypical saguaro cactus (long upright, the first arm may grow after some 75 years), to ocotillos, palo verde trees (on the right, a bit further down), brittle bush (foreground), to staghorn cactus (foreground right, with fingerlike segments), and prickly pear (with the flat-pan leaves, in the foreground) and some other smaller shrubs - not seen in this pic but also common in the area: mesquite trees, hedgehog cactus, teddy bear cholla and jumping cholla, claret cactus, fishhook cactus