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 ...

Most people see their first saguaro (pronounced “sah-wah-roh”) cactus on television, perhaps in a cartoon or a Western movie. The signature plants of the Sonoran Desert, towering saguaro cacti ...

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 ...

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, ...

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 ...

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 ...

There is a specific kind of silence that you only find in the Sonoran Desert. It is not an empty silence but a heavy, ...

The saguaro cactus may be the most recognizable plant in the Southwest. It’s so entwined with this region that it adorns buildings, logos, signs and license plates throughout Arizona. Its likeness has ...

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 ...

From desert oases to canyon rims, these five Arizona campgrounds in state and national parks offer top reviews, great ...