Description from Flora of China
Large trees, ca. 20 m tall; trunk ca. 40 cm d.b.h. Branchlets very thick, 7-8 mm in diam. at middle, densely grayish brown villous. Buds large, appressed ferruginous villous. Petiole very thick and compressed, 1-1.5 cm, to 4.5 mm wide, densely grayish brown villous; leaf blade obovate-lanceolate, 18-32 × 7-10.5 cm, leathery, abaxially densely grayish brown villous, especially at veins, adaxially glabrous or hairy along midrib, midrib very thick, abaxially distinctly elevated, adaxially impressed into canal, lateral veins 18-32 pairs, anastomosing at margin, veinlets conspicuous, base attenuate, apex obtuse or mucronate. Infructescences 18-24 cm, hairy; peduncle 13-16 cm, ca. 4 mm in diam., very thick, ligneous. Fruit ellipsoid, 2-2.2 × 1.5-1.6 cm, apex hairy; persistent perianth lobes ovate, ca. 6 × 3.5-4 mm, lax, somewhat thickened, grayish brown pubescent on both surfaces, especially outside; fruiting pedicel ca. 3 mm, thickened, 2.5-3 mm in diam.
● Mountain slopes, broad-leaved forests; ca. 1700 m. SE Xizang.