Quercus jaliscensis Trel. 1924

Twigs moderate (3-4 mm.), somewhat fluted, staringly yellow-tomentose, and
remaining hoary for several years. Buds glossy brown, finally glabrate, rounded,
2 mm. in diameter, with rather persistent stipules. Leaves deciduous, elliptical
ranging somewhat into ovate or obovate, acute to very obtuse, cordate, repand
to almost crenately lobed, moderate (3-4 x 6-9 cm.), finely yellow-stellate-matted
above, becoming glossy blue-green when abraded, paler, duller and detachably
stellate-fleecy beneath; veins about 6-12 pairs, looped in the more entire forms,
with little-raised reticulation; petiole long-tomentose, 2-3 mm. long. Catkins?. Fruit
annual, at the end of tomentose peduncles 2 x 15-30 mm.; cup half-round, moderate
(15 mm. in diameter) with somewhat keeled close acute hoary scales; acorn
round-ovoid, more than half-included.
Western Sierra Madre region of Mexico.