Description from Flora of China
Phlebochiton extensum Wallich; Robergia hirsuta Roxburgh; Tapirira hirsuta (Roxburgh) J. D. Hooker; T. extensa (Wallich) J. D. Hooker ex Marchand.
Woody climbers; branchlets purplish brown, densely yellow tomentose. Petiole and rachis densely yellow tomentose; leaf blade 20-40 cm, imparipinnately compound with 9-15 opposite leaflets; leaflet petiolule 2-3 mm, densely yellow tomentose; leaflet blade ovate or ovate-elliptic, 4-11 × 2-4.5 cm, membranous or papery, adaxially minutely yellow pubescent along midrib, abaxially appressed pubescent along midrib and with yellow tufts of hairs in axils of lateral veins, base slightly oblique, cordate or subcordate, margin serrate distally, rarely entire, apex acuminate or acute, lateral veins 6-8 pairs, prominent on both surfaces. Inflorescence paniculate, 20-35 cm, loosely branched, densely yellow tomentose; floral subtending bracts subulate, ca. 1 mm, pubescent. Pedicel slender, ca. 1.5 mm, glabrous; flower small, white. Calyx glabrous, lobes narrowly triangular, ca. 0.8 mm. Petals narrowly ovate, ca. 1.5 × 0.7 mm, acute. Stamens ca. 0.7 mm; filaments subulate. Disk 5-lobed. Ovary ovoid, ca. 1 mm, glabrous; style ca. 0.5 mm. Drupe ellipsoid, oblique, slightly compressed, ca. 10 × 8 mm, black at maturity. Seed compressed. Fl. Jan-Apr, fr. May-Jul.
Lowland and hill forests; (200-)500-1800 m. W Guangxi, SW Guizhou, S Yunnan [Bhutan, India, Myanmar, Nepal, Thailand].