Family: Beech (Fagaceae)
Other names: Sonoran scrub oak, California scrub oak, turbinella oak
Notes:Tiny male and female flowers on same tree; male in drooping catkin; female in sjort spike. More than a dozen species of Quercus in Arizona.
This plant is found on the Appleton-Whittell Research Ranch Working Check list of flora.
Sonoran scrub oak plant profile on the USDA Plants server.