Quercus xanthoclada Drake

Vietnam; Laos; Myanmar;

10-15 m; trunk to 2 m in girth;

5.5-15 cm x 3-5; oval or oboval-oblong; apex rounded or shortly acute; base attenuate or rounded; margin remotely dentate near apex, entire or sinuate near base; young leaves densely pubescent both sides; mature leaves hairless; glaucous beneath with abundant wax; midrib slightly impressed adaxially, prominent below; 9-10 vein pairs impressed above, prominent below; petiole 1-3 cm, initially densely yellowish pubescent, then glabrous;

female flowers in pairs, with 5 pubescent styles connate at base;

acorn ovoid, truncate at base, 3.5-4 cm long, with basal scare convex; cup nearly campanulate, with a very short stalk, enclosing 1/3 to 1/2 of acorn, with 6-7 concentric rings entire, with thick wall, golden pubescent, glabrescent;

– Camus : tome 1, p. 190, – Sub-genus Cerris, section Cyclobalanopsis;