Oaks of the World

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  Quercus guyavaefolia
Author H.Lév. 1913 Repert. Spec. Nov. Regni Veg. 12: 363
Synonyms pannosa Hand.-Mazz.1929 (A. Camus : n 90)
pileata Hu et W.C.Cheng 1951
semecarpifolia Franchet p.p.
Local names mao dou li
Range China (Yunnan, Sichuan ) ; 2500 to 4000 m ;
Growth habit brittle shrub, evergreen, 0.6 m to 2m, or tree reaching 15 m according to elevation;
Leaves 3.5-8 x 3.5 cm; evergreen; thick and leathery; oval, elliptic or oblong; rounded at both ends; margin revolute, entire, toothed; glabrous above except some multiradiate hairs; dense, tawny, persistent tomentum beneath made of simple, solitary and fascicled hairs; 5-12 vein pairs not densely covered with hairs; petiole 2-4 mm, brown tomentose;
Flowers May to July; female inflorescences 2-6 cm;
Fruits acorn 2 cm long, 1.5-1.8 cm in diameter; subglobose; glabrous; apex rounded; singly or paired, on a 2-6 cm long peduncle ; enclosed 1/2 by cup; cup adherent to nut only at base; scales grey brown tomentose from their base to middle, glabrous and red brown at their tip; maturing in 2 years;

Bark, twigs and

twig reddish to dark brown tomentose;
Hardiness zone, habitat hardy; mountain forests;
Miscellaneous -- A. Camus : n° 88;
-- Sub-genus Cerris, Section Ilex;
-- Closely related to
Q.semecarpifolia Sm.;
-- Also written "guyavifolia" or "guajavifolia";
-- See the Key for similar Asian Quercus

Subspecies and

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