Quercus annulata
Quercus annulata is a tree species in the beech family Fagaceae. There are no known subspecies. It is placed in subgenus Cerris, Quercus [sect. Cyclobalanopsis|section Cyclobalanopsis].
This oak tree has oblong, caudate leaves, 100–120 mm with glaucous undersides. It has been recorded from the Himalayas to Vietnam: the latter in the Phan [Xi Păng] area, where it may be called sồi vòng.