Quercus bourgaei Oersted 1883

Twigs slender (2 mm.), little fluted, more or less persistently gray-tomentose or scurfy,
becoming brown or dark gray. Buds glossy brown, glabrescent, ovoid, scarcely 2 mm.
long. Leaves deciduous, short-lanceolate, aristately acute, mostly rounded at base, entire
or with several aristate low teeth, small (1-2 x 3-5 cm.), glossy and glabrous above, dull
beneath and slightly floccose in the axils; veins about 8 pairs, conspicuously looped below
the margin, the veinlets little raised beneath; petiole hoary, l x 5-8 mm. Catkins?. Fruit
(always?) annual, subsessile or on a stalk scarcely 3 x 10 mm.; cup somewhat turbinate,
shallow, moderate (15-20 mm, in diameter), with somewhat thick-based appressed rather
acute hoary scales; acorn ovoid, lightly glaucous, less than one-third included.
Northern cordilleran region of Mexico.