Quercus griffithii Hook. fil. & Thomson ex Miq.

Very close to Quercus aliena var. acutiserrata and could be treated as its synonym.

Trees to 25 m tall, deciduous. Branchlets yellowish gray pilose or pubescent, glabrescent. Petiole 0.5-1 cm, grayish brown shaggy; leaf blade obovate to obovate-elliptic, 10-20(-30) × 4-10 cm, abaxially densely with grayish stellate hairs, sometimes glabrescent, base rounded to narrowly cuneate, margin serrulate, apex shortly acuminate to acuminate; midvein abaxially with long simple hairs; secondary veins 12-18 on each side of midvein; tertiary veins abaxially conspicuous. Female inflorescences axillary on young shoots; cupules solitary or in fascicles of 2 or 3. Cupule cupular, 1.2-1.5 cm in diam., enclosing 1/3-1/2 of nut; bracts narrowly ovate-triangular. Nut ellipsoid to ovoid-ellipsoid, 1.5-2 × 0.8-1.2 cm; scar ca. 6 mm in diam., slightly raised; stylopodium ca. 1 mm in diam. Fr. Sep-Oct.

This spedcies occurs in Sikkim and may be expected to occur in Nepal.

Guizhou, Sichuan, Xizang, Yunnan [Bhutan, NE India, Myanmar, Sikkim, Sri Lanka, N Thailand]

Mixed mesophytic forests; 700-2800 m.

Quercus aliena Blume var. griffithii (J. D. Hooker & Thomson ex Miquel) Schottky.

Quercus griffithii, called paisang, is a species of oak native to the eastern Himalayas, Tibet, south-central and southeast China, Assam, Myanmar, Thailand, Laos, and Vietnam. It is in the subgenus Quercus, section Quercus. Some authorities feel that it could be a synonym of Quercus aliena var. acutiserrata. It is a deciduous tree reaching 25 metres (82 feet) with an oblong crown, typically found from 700 to 2,800 m (2,300 to 9,200 ft) above sea level. It is a locally important fuelwood and fodder species.