Quercus augustinii

Quercus augustinii is a rare species of tree in the beech family Fagaceae. It has been found in Vietnam as well as Guangxi, Guizhou, and Yunnan Provinces in southern China. It is placed in subgenus Cerris, section Cyclobalanopsis.

Quercus augustinii is a tree up to 10 m. tall, with orange-brown twigs and leaves as much as 120 mm long. The acorn is oblong-ovoid, 10-17 × 8-12 mm, glabrous, apex rounded or slightly depressed; scar approx. 6 mm in diameter.