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 ...

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 ...

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

TUCSON, Ariz.— Following multiple petitions and lawsuits by the Center for Biological Diversity and Defenders of Wildlife, the U.S. Fish and Wildlife Service today proposed to protect cactus ...