The iconic metro Phoenix cactus shaped like a dinosaur is now headless. Here's what to know about the unusual cactus in the Superstition Mountains.

Other unusual cactuses to see in Arizona. While the T. rex cactus may have lost a key piece of its iconic shape, there are other unusual cactuses in Arizona worth checking out.

Some of these rare cactus can sell for thousands of dollars. They've become particularly popular among millennials -- the prickly plants are a fan favorite on Instagram-- but they are extremely ...

Arizona is known for its cactus, especially the saguaro. But a lesser known cactus in Tucson is gaining attention for its unique shape. Check it out.

If you ever spot this elusive cactus while in Texas, consider yourself lucky. While beautiful, it's also endangered, so be sure to admire it from afar.

Karen Little, manager of the Sul Ross State University greenhouse, holds a rare Pelecyphora aselliformis cactus, seized by the U.S. Fish and Wildlife Service en route to markets overseas.

The Cactus Store in Echo Park showcases the rare and unusual types of cactus. Co-owners Carlos and Johnny Morera are passionate about the plants. (Photo by Sarah Reingewirtz, Pasadena Star-News/SCNG) ...

NYC's Cactus Store offers a wide range of unusual plants for sale, but their rarest is a Haageocereus tenuis, listed for sale on their website for $250,000. Gifted to the store's owners by a ...