Arizona Oak, Arizona White Oak           kwer-KUS air-ih-ZAWN-ih-kuh

• Broadleaf evergreen (or nearly so) shrub at high elevations, but in low canyons, a tree to 30-60 ft (9–18 m) tall, irregular spreading stout branches, round-topped symmetrical crown.  Leaves alternate, simple, leathery, 4-7.5 cm long and 2-4 cm wide, oblong or obovate, margin spiny or more or less entire, base rounded or heart- shaped, parallel veins, blue-green above and duller below.  Male flowers are borne in yellowish-green catkins 5-7.5 cm in length, female flowers on short stems.  Acorns solitary or paired, 2-2.5 cm long, stalkless or nearly so, enclosed by a deep cup with fine hairy scales; matures in 1 year.
• Sun.  
• Hardy to USDA Zone 7      Native to Arizona and east to New Mexico and southwestern Texas, and south into Mexico.