Between crested cactuses and the "four-arm flexing" cactus, Arizona's native flora can take some unusual shapes. Tucson even has the kissing cactus, which looks like a couple embracing. But the T-Rex ...

At the Desert Botanical Garden, researchers can request plants that have been catalogued over 80 years to understand genetic changes.

PHOENIX — The acuna cactus is a small and spherical succulent that grows pink colored flowers with green fruits in the Sonoran Desert. The cactus native to Arizona, though, is listed as endangered and ...

PHOENIX (Reuters) - Arizona's saguaro cacti, a symbol of the U.S. West, are leaning, losing arms and in some cases falling over during the state's record streak of extreme heat, a scientist said on ...