The deaths point to a broader problem affecting the southwestern United States. Scientists raise red flag over emerging ...

Giant groundsels are rare plants that grow up to 30 feet (9 meters) tall. They are endemic to the slopes of Mount Kilimanjaro, a dormant volcano in Tanzania and Africa's tallest mountain.

Saguaros across the Tucson area are erupting with flowers in an unusual display not seen since 2021. Experts don't really ...

The National Park System contains multiple trails that are accessible and comfortable for wheelchair users and others with ...

and towering saguaro cacti—some reaching 60 feet and living two centuries—stand tall as living icons of the Southwest. The land was purchased with help from the Land and Water Conservation ...

An Oro Valley family is hoping people check their Saguaros after their neighbor's cactus fell ... had planted the Saguaro about 30 years ago, and thinks it was about 15 feet tall.

While they can grow to unique heights, one cactus holds the world record for being the tallest ever recorded. Here's what to know about the tallest saguaro on record, how tall they usually grow ...

Saguaro cactuses tower over Arizona's desert landscape, each year inching higher and higher for hundreds of years as they watch time pass. While they can grow to unique heights, one cactus holds the ...