Oaks of the World

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  Quercus phanera
Author Chun 1947 J. Arnold Arbor. 28: 242
Synonyms Cyclobalanopsis phanera (Chun) Hsu & Wei Jen 1979
basellata Chun & W.C.Ko 1958
insularis Chun & P.C.Tam 1965, nom. illeg. not Borzi 1911
Local names liang ye qing gang ;
Range China (Guangxi, Hainan) 900-2000 m ;
Growth habit reaches 25 m tall;
Leaves 5-15 x 2-6 cm; oblong-elliptic to oboval; leathery; apex with short, blunt tip; base cuneate, oblique; margin serrate at apical 1/2; shiny green above, paler beneath; both sides hairless; midrib flat adaxially, prominent beneath; 7-10 vein pairs strongly raised below; tertiary veins slender, evident beneath; petiole 1-1.8 cm long;
Flowers pistillate inflorescence very short, 5 mm, bearing usually a single flower;
Fruits acorn 3-4 cm long, 2-2.5 cm wide; cylindrical to ellipsoid; villose; enclosed 1/4 by cup; cup shallow (1-1.5 cm long, 1.8-2.5 cm wide), velutinous inside and outside, 2-3 mm thick, with 8-12 concentric rings denticulate at margin, yellowish pubescent; scar 8-10 mm in diameter, slightly convex; stylopodium persistent, ringed at base; maturing in 2 years;

Bark, twigs and

twigs tomentose, becoming hairless;
Hardiness zone, habitat not hardy; mixed forests in mountains;
Miscellaneous -- Flora of China 2001 : n° 37;
-- Sub-genus Cerris, Section Cyclobalanopsis;
-- Section Semiserrata, sub-section Chrysotrichae (Menitsky).
-- Threatened (IUCN Red List Category : EN).

Subspecies and
Pictures drawing