The desert prickly-pear, known to botanists as Opuntia phaeacantha, is the Southwest's most widespread and abundant species of cactus. Unlike the giant saguaro (Carnegiea gigantea) that is restricted ...

It’s taken about two decades for a cactus in the backyard of Bill Edelen’s condo to grow to nearly two-stories high and tower over his Palm Springs home. With one straight green stalk, and a few buds ...

Pablo Guerrero has been visiting cacti in the Atacama Desert his whole life, first on family trips to the Chilean coast and later as a researcher studying the impacts of climate change and illegal ...

With their tough skins, pointy armor and legendary stamina, cacti are made to defend themselves from whatever nature throws at them. But large solar energy facilities are one threat that cacti weren’t ...

April can be an especially colorful time in the desert, as many of our native cacti unfurl their short-lived but spectacular flowers during these few weeks. Among the very showiest are the hedgehog ...

With their tough skins, pointy armor and legendary stamina, cacti are made to defend themselves from whatever nature throws at them. But large solar energy facilities are one threat that cacti weren't ...