Description from Flora of China
Small trees, 3-8 m tall. One-year-old branchlets brown, terete, ca. 2 mm in diam., striate, glabrous, with corky oblong lenticels; current year branchlets red-brown, slender, ± compressed, densely rusty pubescent. Terminal buds small, ovoid, ca. 3 mm; bud scales very densely yellowish brown pubescent outside. Leaves subopposite or alternate; petiole 0.8-1.5 cm, plano-convex, very densely rusty pubescent when young but glabrate when mature; leaf blade yellow-brown adaxially but yellowish brown or brownish when dry, ovate or elliptic, 5.5-10 × 2.5-5 cm, subleathery, rusty pubescent on both surfaces especially along midrib and veins abaxially when young, ± rusty pubescent abaxially and glabrate adaxially when mature, midrib and lateral veins conspicuously elevated abaxially, impressed adaxially, lateral veins 3-6 pairs, arcuate and interconnected at ends, basal lateral veins very close to leaf margin, transverse veins ± conspicuous abaxially, opaque adaxially, connected by inconspicuous veinlets, base broadly cuneate, margin revolute, apex acute to shortly acuminate and always oblique. Panicle axillary on upper part of branchlet, few flowered, 0.9-1.2 cm before anthesis; peduncle 1-5 mm, peduncle and rachis rusty pilose; bracteoles subulate, less than 1 mm, rusty pubescent. Pedicels slender, up to 1.5 mm, densely rusty pubescent. Flowers green, small, less than 1 mm when in bud. Perianth glabrous outside, pubescent inside; perianth tube obconical; perianth lobes 4, broadly triangular, very short. Fertile stamens 4, in 2 whorls, outer 2 each with 2 glands at base; anthers 2-celled; cells introrse. Staminodes 4, linear, densely villous. Ovary ovoid; style attenuate. Fruit subobovate, ca. 3 × 3.3 cm, smooth, glabrous, yellow-brown when dry, subtruncate at apex. Fl. Apr-May.
● Limestone mountains, dense valley forests; 800-1000 m. SE Yunnan (Funing).