Here's yet another cactus of the
Scrub. It's called tasajillo, or pencil cactus.
It's closely related to the prickly pear, but looks
quite different. It's built in joints that break
off easily. If you're unwise enough to brush up
against it, you will end up with pieces of it attached
to you! This helps spread it around. They don't
call it the Thorn Scrub for nothing!