Oaks of the World

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  Quercus tenuiloba
Author C.H.Muller 1936 J. Arnold Arbor. 17: 178
Synonyms tenuiloba f. hirsuta C.H.Mull. 1936
Local names
Range Mexico (Nuevo Leon); 1400-2000 m;
Growth habit tall tree;
Leaves 12-18 x 3.5-5.5 cm; deciduous; lanceolate; apex acuminate aristate; base mostly rounded, or slightly cordate; hairless above; hairless beneath except axil tufts and hairs on midrib; margin cartilaginous, slightly revolute, wavy, superficially dentate with bristle-tips to 4-8 mm long, sinuses rounded; 10-12 pairs of lateral veins slightly impressed above, raised abaxially, at an angle of 40° with the midrib; petiole depressed, 1-2.2 cm long;
Flowers female catkin 6-8 cm long, bearing 2 flowers; stigmas very long;
Fruits acorn maturing in 2 years; cup rounded, with tomentose, oval, appressed scales;

Bark, twigs and

black bark, furrowed, rough; twig 3 mm thick, sulcate, brown-red then brown-grey, with small prominent lenticels; bud conical, acute, pubescent, 3 mm long;
Hardiness zone, habitat
Miscellaneous -- A.Camus : tome 3, p. 259, n° 391;
-- Sub-genus Quercus, section Lobatae, Series Erythromexicanae, Group Acutifoliae; 
For today's Mexican Authors (Silvia Romero Rangel, 2006), this species is a synonym of Q.xalapensis.

Subspecies and