Teddy bear cactus

The broad, well-manicured trail tries to keep you a safe distance from the super-sharp needles.

Cholla cactus needles might otherwise reach for your arms and legs when you’re not looking.

Stepping on the easily detachable cactus balls of the “teddy bear cholla” (Cylindropuntia bigelovii) can result in penetration of the one inch long spines clean through your sneakers and in some instances boots.