Description from Flora of China
Branchlets terete, yellow tomentose, inconspicuously angular, without lenticels; tendrils lateral and opposite inflorescences. Petiole 1-1.5 cm, densely yellow pubescent; leaf blade ovate, 5-12 × 2-7 cm, abaxially light yellow crispate pubescent on veins, adaxially yellow crispate pubescent only on midvein and lateral veins, lateral veins 4-6 pairs, anastomosing near margin, tertiary veins dense, subparallel, reticulate veins slender but conspicuous, all veins prominent abaxially, base slightly cordate, oblique, apex acuminate to long acuminate. Corymbs axillary or lateral, conical, 4-10 cm, densely yellow pubescent; staminate inflorescences sparse; peduncle long, 4-9 cm. Stami-nate flowers: calyx 0.5-1 mm, 4- or 5-lobed, lobes outside densely yellow-white somewhat rigidly strigose, apex obtuse or rounded; petals 4 or 5, oblong-ovate, 2-3 mm, outside yellow-white somewhat rigidly strigose, united at base; stamens (3 or)4 or 5, alternate petals; filaments filiform, ca. 1.5 mm; anthers ovoid, ca. 0.5 mm; ovary undeveloped, flat, globose. Pistillate flowers unknown. Drupe oblong, compressed, 3-3.8 × 1.5-2 cm, densely yellow tomentulose, longitudinally 3-ribbed per side when dry and larger polygonous reticulate-lacunose, with slender prominent ridges in pits, tapering downward, with persistent, accrescent calyx and petals. Seeds oblong, 2-2.5 × 1-1.5 cm; endosperm copious; embryo ca. 1.2 × 0.8 cm; radicle very short. Fl. Apr-Jul, fr. May-Aug.
This plant is used in Guangxi for curing nephritis.
Valleys, sparse woods; 100-1300 m. SW Guangxi, SE Yunnan [N Vietnam].