Quercus incarnata Trel. 1924

Twigs moderate (3 mm.), somewhat fluted, from gray-tomentose becoming
glabrescent and dark red. Buds dull brown> hairy, ovoid to subusiform,
3 x 5-6 mm. Leaves deciduous ?, elliptical-obovate or oblong, obtuse to acute,
mucronate, truncate or rounded at base, entire to undulately mucronate-toothed,
especially upwards, or in some forms sharply coarse-serrate, revolute, rather small
(1.5-2 x 4-5 cm. or more), slightly stellate-scurfy to glabrate and glossy above, minutely
but very densely yellow-tomentose beneath; veins about 8 pairs, running into the teeth
or marginal awns, somewhat forking and obscurely looped; petiole from canescent
glabrescent and flesh-colored, 1.5 x 5-10 or 15 mm. Catkins: male 40 mm. long,
stellate-tomentose, rather closely flowered, the glabrous ellipsoid anthers little exserted;
female about 5 mm. long, canescent, 2-flowered. Fruit annual, solitary or paired,
short-stalked; cup shallow, rather turbinate, small (10-12 mm. in diameter), with
thin appressed blunt or lacerate subcanescent scales; acorn ovoid, 10 mm. long,
about half-included.
Western Sierra Madre region of Mexico.