Quercus diversicolor Trel. 1924

Twigs rather slender (2-3 mm.), fluted, from stellate-pilose glabrescent, rather
glossy brown with inconspicuous small lenticels. Buds rather dull light brown,
glabrescent, ovoid, 1.5 x 2 mm., the terminal with persistent stipules. Leaves
deciduous?, round-obovate, very obtuse, shallowly cordate, low-dentate above,
rather small (3-4 x 4-6 cm.), the convex upper surface slightly glossy green and
at most sparingly stellate-tufted, with impressed veins, the lower surface dull,
prominently veined, loosely hairy and brownish-yellow granular; veins about 8 pairs,
somewhat forking but hardly looped; petiole stellate-hairy, about 1 x 5 mm.
Catkins: male about 50 mm. long, rather loosely flowered, fleecy, the smooth
rounded anthers little exserted. Fruit annual, usually 2 or 3 at end of a slightly
hairy peduncle about 2 x 10-15 mm.; cup half-round, rather small (10-15 mm.
in diameter), with thin closely appressed acute brown scales somewhat rusty or
canescent below; acorn ovoid, about 10 mm. long, nearly half-included.
Western Sierra Madre region, chiefly in the United States.