Quercus poilanei
Quercus poilanei is an Asian species of tree in the family Fagaceae and the "ring-cupped oak" sub-genus. It has been found in northern Indochina (Thailand and Vietnam) and also in the Province of Guangxi in southern China. "Quercus poilanei" is a tree up to 16 m. tall. Twigs are orange-brown with a felty coating of hairs. Leaves can be as much as 80 mm long. The acorn is ovoid-ellipsoid or globose, 15-20 × 13–15 mm, with a scar 5–7 mm in diameter.