Oaks of the World

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 Quercus guyavaefolia
AuthorH.Lév. 1913
Synonyms pannosa Hand.-Mazz.1929 (A. Camus : n 90)
pileata Hu et W.C.Cheng 1951
semecarpifolia Franchet p.p.
Local namesmao dou li
RangeChina (Yunnan, Sichuan ) ; 2500 to 4000 m ;
Growth habitbrittle 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;
FlowersMay to July; female inflorescences 2-6 cm;
Fruitsacorn 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
buds

twig reddish to dark brown tomentose;
Hardiness zone, habitathardy; mountain forests;
Miscellaneous -- A. Camus : n° 88;
-- Belongs to the Ilex Group, according to Denk & Grimm 2010;
-- closely related to
Q.semecarpifolia Sm.;
-- also written "guyavifolia" or "guajavifolia";
-- see th Key for similar Asian Quercus
Subspecies and
varieties
 
Pictures

drawing 1
drawing 2