Quercus palmeri
Quercus palmeri is a species of oak known by the common name Palmer oak, or Palmer's oak. It is native to California (as far north as Fort Ord along the Monterey Bay), Baja California, Southern Nevada, and in Arizona through the transition zone to the eastern Mogollon Rim, where it grows in canyons, mountain slopes, washes, and other dry habitats. Description. "Quercus palmeri" is a shrub or small tree growing up to tall, but known to reach 6 m (20 ft) at times. It branches into angular twigs and is reddish brown. The leaves are in length . They are stiff, leathery, and brittle, their edges wavy with sharp spine-teeth. The upper surface is shiny, waxy, and olive green in color, the lower gray-green and coated with glandular hairs. The fruit is an acorn with a hairy cap up to 2.5 cm (1 in) wide and a blunt-ended nut long. "Quercus palmeri" usually grows in small populations, some of which are actually cloned growths of a single plant. One such clone in the Jurupa Mountains in Riverside County, California, named the Jurupa Oak, was determined to be over 13,000 years old, a single individual living  as a relict from the Pleistocene. It is therefore one of the oldest living plants in the world. Taxonomy. "Quercus dunnii" Kellogg 1879, common name Dunn oak, is synonymous with Palmer oak. Palmer oak does not occur in New Mexico as the specimen were misidentified and later corrected to "Quercus grisea" on seinet were the collection records are maintained. The population of golden oaks in Apache Box near Arizona appear to be integrated "Quercus chrysolepis Affinity palmeri" as stated in the FNA. The population is not "Q. palmeri" but mostly "Q. chrysolepis" with past hybridization with "Q. palmeri". "Quercus palmeri  was recently discovered in Southern Nevada in Christmas tree pass that was previously only know from fossils.