Rehderodendron praeteritum Sleumer; R. tsiangii Hu & Cheng; R. yunnanensis Hu.

Trees to 15 m tall. Trunk to 30 cm d.b.h. Branchlets stellate pubescent or glabrous. Winter buds ovate-oblong, 5--6 mm. Petiole ca. 1 cm; leaf blade elliptic to ovate-elliptic, 12--20 X 5--9.5 cm, abaxially densely brownish stellate tomentose, adaxially densely brownish stellate pubescent on veins, base rounded to broadly cuneate, margin remotely serrate, apex shortly acuminate to acute, secondary veins 8--12 pairs, tertiary veins reticulate and raised. Inflorescences racemes or panicles, 5--16-flowered, 6--10 cm. Pedicel 3--6 mm. Flowers 1.2--1.5 cm. Calyx ca. 3 X 2 mm, densely yellow stellate tomentose, teeth deltoid. Corolla lobes oblong to obovate-elliptic, ca. 13 X 5 mm. Filaments white stellate villose. Fruit cylindrical to cylindrical-ellipsoid, slightly curved, 5--7.5 X 3--4.5 cm, 10--12-ribbed, coarsely rugose between ribs, densely gray-brown to brownish stellate tomentose, exocarp ca. 1 mm thick, mesocarp ca. 1 cm thick, endocarp 3--4 mm thick. Seeds 2--4, cylindrical, ca. 6 mm. Fl. Apr-May, fr. Aug-Sep.

Dense forests; 500--1500 m. Guangdong, Guangxi, Guizhou, SE Yunnan [Vietnam].