Deciduous native with shiny, dark green leaves that change from red to yellow in the fall. This shrub or tree grows from 6 to 30 feet tall. Establishing from the acorns, stringy green flowers bloom in March and April; attract butterflies. Tan acorns seed and mature in autumn.The Gambel Oak prefers dry soil to moist soil and part shade. Foliage browsed by game and livestock, while wild turkeys, squirrels, and other small mammals enjoy the acorns.