Quercus infralutea Trel. 1924

Twigs moderate (3 mm.), little fluted, densely yellowish-tomentose, and
remaining hoary for several years. Buds glossy red, glabrous but with ciliate
scales, rounded, scarcely 2 mm. in diameter. Leaves deciduous, elliptical-obovate,
obtuse, rounded at base, repand to typically coarsely and bluntly serrate-toothed,
somewhat revolute, moderate (4-5 x 7-9 cm.), finally glabrescent and somewhat
glossy blue-green above, closely yellow-tomentose beneath; veins about 8-10 pairs,
obscurely looped, with evident branches; petiole tomentose, 1.5 x 2 mm.
Flowers and fruit ?.
Western Sierra Madre region of Mexico.