This project is the sixth land protection initiative that TPL has undertaken to intensify the beauty of the park and ...

Wander through a botanical wonderland outside Phoenix, Arizona complete with canyon views, rare plants, wildlife sightings, ...

The cacti arrive in buckets and cardboard boxes, in truck beds and plastic cups. Some are prickly green knobs smaller than a fist; others are saguaros a few feet tall—miniature versions of the ...

The Saguaro National Park is found in the Sonoran Desert. This Park is home to the largest species of cacti. Find out more about this interesting desert and the scientists studying there at the ...

President Teddy Roosevelt, the quintessential conservationist, said, "A grove of giant redwoods or sequoias should be kept just as we keep a great and beautiful cathedral.” While in Tucson, Arizona, ...

Here’s everything you need to know to plan a trip to Saguaro National Park in Arizona, including the best hiking trails, things to do, and more.

President Teddy Roosevelt, the quintessential conservationist, said, "A grove of giant redwoods or sequoias should be kept just as we keep a great and beautiful cathedral.” While in Tucson, Arizona, ...

Justin Stewart, an ecologist with the Society for the Protection of Underground Networks, collects a sample of soil containing mycorrhizal fungi taken at Saguaro National Park. Credit: Wyatt ...

The saguaro cactus is perhaps the most iconic symbol of our state. You can find it pictured everywhere from coffee cups to murals to tattoos. People love saguaros, but we know surprisingly little ...

A clandestine group has spent thousands of hours searching the Sonoran Desert for massive rare cactuses endangered by the expansion of Arizona cities. The Crested Saguaro Society began searching the ...

The saguaro cacti around my museum home look like they are celebrating! Flowers and fruits ring their crowns and the tips of their arms. Soon after the white flowers close, the bright red, open fruits ...

Accurate abundance estimates of plant populations are fundamental to numerous ecological questions and for conservation. Estimating population parameters for rare or cryptic plant species, however, ...