Oaks of the World

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  Quercus carmenensis
Author C.H.Muller 1937 Amer. Midl. Naturalist 18: 847 1937
Local names mexican oak ; del Carmen oak ;
Range Mexico (Coahuila, Sierra del Carmen) ; Texas (Chisos Mountains); 2200-2500 m ;
Growth habit spreading, rhizomatous shrub 0.5-2 m high, or tree reaching 12 m with a trunk to 0.75 m in diameter;
Leaves 3-5 x 1.3 cm; deciduous; oblong to oboval; rather thin, pliable; base rounded or cuneate; apex obtuse or rounded; margin entire or with shallow lobes or slightly dentate near apical 1/2; 9-12 pairs of lateral veins, ending the teeth (if any) in a mucro; dark green, slightly tomentose above; pale green and densely pubescent beneath; petiole glabrescent, slender, red, 0.5-1 cm long;
Flowers male catkins 2-3 cm; female inflorescences 1-5 cm, bearing 2-3 flowers on a thin, tomentose peduncle;
Fruits acorn solitary or paired; subsessile; cup with light brown scales;

Bark, twigs and

bark light grey, striate; twigs often red, remotely pubescent, becoming grey and glabrous, with raised, pale lenticels; buds pale brown, globose, pubescent, 1-15 mm long; stipules persistent, straight, 3-6 mm long;
Hardiness zone, habitat hardiness zone : 7;
Miscellaneous -- A. Camus : 265;
-- Sub-genus Quercus, Section Quercus, Series Leucomexicanae;
-- Rare. Threatened (IUCN Red List Category : EN)
Subspecies and