Quercus hintonii E.F.Warb.

Center of Mexico; 1300 to 2000 m ;

reaches 15 m, with trunk to 30-50 cm in diameter;

5-20 x 3-10 cm; deciduous; leathery; oboval, oval or elliptic; apex pointed more or less acuminate, aristate; base obtuse to slightly cordate, sometimes acute, often asymmetrical; margin thick, revolute, cartilaginous, entire or toothed (1-4 pairs of aristate teeth), sometimes toothed only near apex or only one side; shiny light green (red when unfolding), hairless above (except stellate trichomes along midvein and glandular trichomes at base of the limb); underside densely yellowish white tomentose, tomentum made of stellate trichomes with 1,5 mm long rays and golden glandular trichomes; epidermis smooth; midrid sometimes prominent adaxially; 6-14 secondary veins pairs, sunken adaxially; petiole 0.7-2.5 cm long, densely tomentose;

in March; male catkins many-flowered, 3-10 cm long; female inflorescences pubescent, 1-1,4 cm long, with 1-6 flowers;

acorn globose 6-15 mm long, slightly flattened at apex; 1 to 4 on a very short peduncle 6-7 mm long; cup very shallow, not rolled at rim, with scales pointed at apex, enclosing less than 1/4 of nut; maturing in 1 year, from June to August;

mixed forests oaks-pines; not hardy;

– A. Camus : n° 344; – Sub-genus Quercus, Section Lobatae, Subsection Erythromexicanae, group Crassifoliae; – Threatened (IUCN Red List Category : EN)