Quercus botryocarpa Trel. 1924

Twigs rather stout (3-5 mm.), little fluted, from yellow scurfy-tomentose becoming
glabrous and gray the second year with crowded prominent lenticels. Buds rather
dull brown, puberulent, ovoid, 2 x 3 mm. Leaves evergreen, thin but hard, elliptical,
very obtuse to acute or acuminate, rounded at base or shallowly cordate, revolute, rather
large (3.5 or 4-7 or 8 x 8-12 cm. or more), glossy, glabrous except for some scurf along
the midrib above and axillary tufts beneath; veins about 12-15 pairs, often with several
evanescent intermediates, repeatedly forking and irregularly looped, with impressed
reticulation above; petiole glabrescent, scarcely longer than thick. Catkins?. Fruit
biennial, crowded along a glabrous stalk 3 x 25-30 mm.; cup saucer-shaped, moderate
(15 mm. in diameter), with thin appressed blunt somewhat ashen scales; acorn ovoid,
silky-scurfy, covered at base only.
Western Sierra Madre region of Mexico.