Appearance and hardiness of Oaks vary widely, but all produce acorns preceded by inconspicuous flowers. Single nuts are more or less enclosed in a cuplike cap covered with many closely set scales. In some species, the acorns are edible,with a sweet flavor. Some oaks are widely planted over large areas, while others have a limited rangeQuercus emoryi
Native from Arizona to Texasand adjacent Mexico. Handsomeand rounded, to 50 ft. tall and40 ft. wide. Leathery darkgreen, oval, sharply toothedleaves to 2–3 in. long are holly-likebut flat; turn golden anddrop just before new growthbegins in late spring. Round-tipped,oblong, edible acornsenclosed by up to one-half inbowl-like cap. Grows well in lowdesert; tolerates a variety ofsoils. Needs periodic summersoakings.
Native to southwesternU.S. Branching gray stems are set with narrow white leaves to 3/4 in. long. Bloo...
Native to southwesternU.S. and Mexico.Grows to 8 ft. (possibly 15 ft.)tall, 12 ft. wide. Leaves arediv...
Nativeto Arizona. Grows slowly to 3–10 ft. tall and wide. Dark gray-greenleaves have five to nine1/2–1...