Quercus xanthotricha

Quercus xanthotricha is an Asian species of tree in the family Fagaceae and the "ring-cupped oak" sub-genus. It has been found in northern Indochina (Laos, Vietnam) and in southern China (Yunnan).
"Quercus xanthotricha" is a small tree up to 8 m. tall. Twigs are dark purple. Leaves can be as much as 80 mm long. The acorn is ovoid to ellipsoid, 9-13 × 7–10 mm, with a scar that is 4–6 mm in diameter.