Family: Beech (Fagaceae)
Other names: Black oak, blackjack oak, bellota
Notes: 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.
Emory Oak plant profile on the USDA Plants server.