Quercus edithiae is a species of tree in the family Fagaceae and the "ring-cupped oak" sub-genus. It is native to Vietnam and southern China (Guangdong, Guangxi, and Hainan) and Hong Kong.Flora of China, Cyclobalanopsis edithiae (Skan) Schottky, 1912. 华南青冈 hua nan qing gang In Vietnam it is called sồi editha. It is placed in subgenus Cerris, section Cyclobalanopsis.
Quercus edithiae is a tree up to 20 m. tall with hairless twigs. The leathery leaves are glabrous, oblong-elliptic to obovate, 50-160 × 20–60 mm, with a 20–30 mm petiole. The acorn is ellipsoid to cylindric-ellipsoid, 30-45 × 20–30 mm, with a scar approx. 7 mm in diameter.Skan, Sidney Alfred 1900. Hooker's Icones Plantarum 27(3): plate 2661 iplus subsequent unnumbered text page description in Latin, commentary in English, full-page line drawing of Quercus edithiae
References
External links line drawing, Flora of China Illustrations vol. 4, figure 377, drawings 5-7 at upper right