Seems like palm trees would be native to Arizona, but palm trees were brought in by immigrants who wanted reminders of their more tropical homes. The palms came from Mexico, Southern California ...

Ponderosa (Pinus ponderosa): This tree is a giant — it can grow to 120 feet tall and needs 30 feet of ground space — and is found extensively in mountainous areas in Arizona.

There are five native walnut species in North America: black walnut, butternut, Arizona walnut and two species in California. ... a Common Tree in North America. 8 Ways to Identify a Tree by Its Bark.

Ironwood trees are almost exclusively found in the Sonoran Desert of Arizona, California and Mexico, where they play the role of what experts call a “habitat-modifying keystone species.” ...

Believe it or not — with literally thousands of them scattered around the Valley — most palm trees are not native to Arizona. I know, they're everywhere, and a slew of area landmarks pay ...