Oaks of the World

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 Quercus rubramenta
AuthorTrel. 1934
Synonyms 
Local names 
RangeMexico (Guerrero, in the Sierra Madre des Sur); 2200-2950 m;
Growth habit25-35 m; trunk to 1 m in diameter;
Leaves 10-25 cm X 3-8; deciduous; leathery; ovate lanceolate to elliptic; apex pointed, acuminate; base rounded or attenuate; margin entire, thick, slightly wavy, with sometimes 1 or 2 pairs of bristle-tipped teeth near apex; glabrous on both sides, with sometimes axil tufts beneath; 11-24 vein pairs raised underneath; petiole becoming glabrous, 2-5 mm long;
Flowersmale catkins 5-12 cm long; pistillate ones 1.5-2 cm, usually 3-flowered;
Fruitsacorn 1-1.5 cm long, oblong, pubescent, singly or to 3 together, stalkless on a 1-3 cm long peduncle; cup halfround, silky inside, with lanceolate scales, enclosing 1/3 to 1/2 of nut; maturing in 1 year;

Bark, twigs and
buds

twig 2-4 mm thick, greyish, with pale, inconspicuous lenticels; bud ovoid, 2-10 mm long X 2-4 mm thick, yellowish at apex, with lanceolate, silky scales ciliate along margin;
Hardiness zone, habitat 
Miscellaneous-- A. Camus = n° 363;
-- Section Lobatae; series Benthamiae;
-- Frequently considered as synonym of Q. salicifolia
-- For Zavala-Chavez, 2003, it is a variety of Q.conspersa.
Subspecies and
varieties
 
Pictures