Oaks of the World

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  Quercus tomentosinervis
Author (Y.C.Hsu & H.Wei Jen) C.C. Huang 1992
Synonyms Cyclobalanopsis tomentosinervis Hsu & Wei Jen 1976
Local names mao mai qing gang ;
Range China (SE Guizhou, SE Yunnan); 2300 m;
Growth habit reaches 20 m tall;
Leaves 7-15 x 3-5 cm; oval to oblong-elliptic; leathery; apex caudate; base broadly cuneate or almost rounded; margin entire, sometimes weakly denticulate towards apex; shiny green, hairless above; grey brown tomentose beneath (essentially along veins); midrib impressed adaxially; 11-15 vein pairs; tertiary veins evident beneath; petiole sulcate above, 2-3.5 cm long;
Flowers pistillate inflorescences 5-7 cm long;
Fruits acorn 1.5-1.7 cm long, 1.3-1.5 cm in diameter; ovoid; hairless; cup half-round, 0.8 cm long, 1.3-1.5 cm wide, thin, pubescent outside, silky inside, enclosing 1/3 of nut, with 6-7 concentric rings (margin with small triangular teeth, except 2 apical rings entire); scar 5-8 mm, convex; stylopodium persistent; maturing in 1 year;

Bark, twigs and
buds

twig sulcate, villose when young, becoming hairless;
Hardiness zone, habitat evergreen broad-leaved forests;
Miscellaneous -- Sub-genus Cyclobalanopsis;
Subspecies and
varieties
 
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