Oaks of the World

General data Classifications List of species Local names Back to
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  Quercus disciformis
Author Chun & Tsiang 1947 J. Arnold Arbor. 28: 324
Synonyms Cyclobalanopsis disciformis (Chun & Tsiang) Y.C.Hsu & H.Wei Jen 1979
shingjenensis Y.T.Chang 1966 Acta Phytotax. Sin. 11: 255
Local names die dou qing gang ;
Range China (Hainan, Guizhou, Guangxi, Guangdong ) ; 200-1500 m ;
Growth habit reaches 10-14 m and more;
Leaves 6-13 x 2.5-4 cm; oblong; subleathery; hairless; base remotely cuneate, apex pointed, magin sharply dentate; 11-13 pairs of curved, thin, conspicuous lateral veins; petiole2 cm, tomentose when young;
Flowers March-April;
Fruits acorn globose, 2 cm in diameter; apex flat; cup tomentose with 8-10 concentric rings, covering only base of nut; matures in 2 years;

Bark, twigs and

twigs velutinous at first, becoming hairless;
Hardiness zone, habitat not hardy; broad-leaved evergreen forests, in mountains;

-- Sub-genus Cerris, Section Cyclobalanopsis;
-- Related to Q. asymetrica;
-- Threatened (IUCN Red List Category : EN)

-- For The Plant List 2013, Q. shingjenensis is a true species, in China (Guizhou) Acta Phytotax. Sin. 11:


Subspecies and

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