Trees 25--30 m tall. Branchlets pilose. Petiole 2--5 cm; leaf blade oblong-obovate or lanceolate-obovate, 25--55 X 10--17 cm, leathery, abaxially appressed puberulous, adaxially glabrous, base cuneate, apex shortly acuminate, lateral veins 21--24 pairs, tertiary veins conspicuously reticulate. Flowers aromatic, 16--25 on apical part of branchlet. Pedicel 5--6 cm, densely rust colored pubescent. Sepals 5 or 6, yellow-green, ovate, inner ones smaller. Corolla 2--2.4 cm; lobes 12 or 13, ovate-oblong, 0.8--1 cm, apex rounded or truncate. Stamens 80--90 or more numerous, filaments 2--3 mm, finely hairy; anthers 5--6 mm, light brown, sagittate. Ovary discoid, rust colored villose, 2--3 mm, 10--12-locular. Style 2--2.5 cm. Fl. Sep, fr. unknown.

Forests or beside trails; 1000--1300 m. Yunnan.