Although a Joshua Tree isn’t a cactus I did see several different types of cactus throughout the Park.
This one didn’t even some up to my knee:
This one only came up to my waist:
And by far the densest concentration of cacti I saw on Friday were in the Cholla Cactus Garden, near the center of the Park. These guys were scattered all over the place, on both sides of the road.
Cholla cactus are often called “jumping cholla” because they like to attach themselves to unwary passersby. This little guy apparently tried “going rogue” and catching a ride with a tourist, only to be cast aside in the parking lot.