Common with all species of cactus, cholla tubular segments are covered with small, wart-like structures known as areoles. Areoles are modified branches and are the location on the cholla from ...

If you don't know what cholla cactus is, read on if you ever plan to walk or hike this desert. What Clark Moorten and I share is a love-hate relationship with all species of genus Opuntia.

jumping cholla are some of the largest and most beautiful of cacti other than giant saguaros. “I’ve seen some that are 10 to 12 feet tall with long chains,” Wiens said. Several cactus books ...

Just as many wildflowers are beginning to fade, cactus blooms are showing up a bit early to keep deserts around Tucson colorful. Among the early bloomers are red and yellow cholla cactus flowers ...

The curve-billed thrasher—the common thrasher of the rich, cactus-laden Sonoran Desert—can be very conspicuous, sitting up on saguaro or cholla cactuses, making its presence known by its loud ...

The spines of the jumping cholla cactus slide in with ease, but they’re grueling to extract. You can thank their barbs. ByKatherine J. Wu Wednesday, November 21, 2018 NOVA NextNOVA Next This ...

It took the Lancasters four years, but their "Phoenix Christmas tree" — made entirely from Cholla cactus skeletons — is complete. Jeff Lancaster shared the final product in a Phoenix ...

The jumping cholla cactus’ innocuous, shrub-like appearance belies its prickly spines’ strength: As a new study published in Proceedings of the Royal Society B reveals, a single cholla spine ...

Kidding. The teddy bear cactus, more commonly known as the jumping cholla, received that nickname because if you get too close...a segment will break off and fly at your body. Yes, a flying cactus.