Small tree, up to 5 m. Branchlets red-brownish, usually hollow. Leaves chartaceous to coriaceous, glabrous on both surfaces; obovate, elliptic, elliptic-to lanceolate-oblong, obovate-to oblanceolate-oblong, ovate-oblong, 15.5-26 by 6-11.5 cm; base rounded to cuneate; margins slightly recurved; apex short-acute, acute, up to 2 cm acuminate; nerves 8-14 pairs, prominent and elevated beneath, slightly elevated or plane above, curving and ascending towards the margins; veins loosely reticulate; petiole thick, c. 5-7 mm long. Inflorescences terminal or/and axillary at the terminal node, rarely cauliflorous, (15-)20-many-flowered; peduncle up to 2.5 cm. Bracts small, lanceolate, ovate to obovate, 3-10 mm long; involucral bracts 4, elliptic-or obovate-oblong, obtuse, 4-12 by 2-5 mm, caducous after anthesis, rarely persistent. Flowers 2.5-3.5 cm long. Floral tube glabrous outside, glabrous or sparsely puberulous to pubescent inside. Calyx lobes obovate-oblong or oblong, 5-7 by 2-3 mm, reflexed, usually puberulous on both surfaces. Stamens and style up to 8-10 mm exserted. Disk cup-shaped. Ovary villous or puberulous at the top, 2-celled, very rarely 1-celled. Fruits ellipsoid, 1.5-2 by 1 cm, blunt at both ends, sometimes apiculate at the apex. Seeds ovoid, 6.5 by 5 mm.
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