Description from Flora of China
Diplothorax tonkinenis Gagnepain.
Trees or shrubs; monoecious or dioecious. Bark dark gray, scabrous. Branchlets with short stiff hairs; lenticels conspicuous when young. Stipules small, caducous. Leaves shortly petiolate or sessile; leaf blade elliptic-obovate to elliptic, 2.5-6 × 2-3.5 cm, leathery, scabrous, base obtuse to ± cordate, margin entire or irregularly crenate, apex blunt to shortly acuminate; secondary veins 4-7 on each side of midvein. Bisexual inflorescences capitate with 1 central sessile female flower surrounded by male flowers. Male inflorescences solitary or paired, capitate; peduncle 8-10 mm, pubescent; bracts few, at inflorescence base, none between flowers, small, narrowly elliptic; bracteoles 2, at base of calyx, larger than bracts. Female inflorescences pedunculate; bracts 1 or 2, at base of peduncle, minute; bracteoles at base of calyx. Male flowers: subsessile; pistillode conic to cylindric, apically tuberculate. Female flowers: calyx lobes pubescent; ovary globose; style apically branched, 6-12 mm in fruit. Drupes yellow, globose, ca. 6 mm in diam., indehiscent, enclosed by enlarged calyx lobes when immature, without a fleshy base. Fl. Feb-Apr, fr. May-Jun.
Near villages, forests; 200-1000 m. Guangdong, Guangxi, Hainan, S Yunnan [Bhutan, Cambodia, India, Indonesia, Laos, Malaysia, Nepal, Philippines, Sikkim, Sri Lanka, Thailand, Vietnam].