Oaks of the World

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  Quercus chungii
Author F.P.Metcalf 1931 Lingnan Sci. J. 10: 481 1931
Synonyms Cyclobalanopsis chungii (F.P.Metcalf) Y.C.Hsu & H.Wei Jen 1982
Local names fujian qing gang
Range China (Fujian, Guangdong, Guangxi, Hunan, Jiangxi ) ; at 200-800 m ;
Growth habit reaches 15 m high;
Leaves 6-10 x 1.5-4 cm; elliptic narrow or broadly lanceolate; subleathery; abundant brown tomentum below (8-10- rays stellate hairs), especially on basal part; base rounded or weakly cuneate, apex sharp pointed; margin denticulate near apex, rarely entire (then not revolute); 10-15 secondary vein pairs prominent only abaxially; tertiary veins evident beneath; petiole greyish brown, velutinous, 1-2 cm;
Flowers female inflorescence 1.5-2 cm, densely tomentose; 4 styles free almost to their base;
Fruits acorn globose, both ends flattened, 1.5 cm in diameter, velutinous; 2 to 6 togethe on short peduncles; cup shallow, 2 mm thick, covering only base of nut, both inside and outside grey brown tomentose; scales in 5-7 concentric rings, greyish pubescent, margin basal 2 crenulate;

Bark, twigs and

twigs velvety, becoming glabrous;
Hardiness zone, habitat in broad-leaved evergreen forests, on mountain slopes and in valleys; not hardy;

-- Sub-genus Cerris, Section Cyclobalanopsis;
-- Section Gilva (Menitsky);


Subspecies and
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