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.

Editor’s note: This is the first in a two-part series on how Arizona got its shape. On Feb. 24, 1863, Abraham Lincoln signed legislation dividing the New Mexico Territory into two approximately ...

Love is in the air in Arizona. Even the cactuses in the Valentine ... It's not unusual for cactuses to grow in unusual shapes. For example, saguaros and other columnar cactuses can be crested ...