Shrubs. Young branchlets gray-brown, stout, lenticellate. Leaves clustered at branchlet apex, biennial; petiole stout, 1–2 cm; leaf blade dark green and shiny adaxially, obovate or obovate-lanceolate, 10–14 × 3–5 cm, thickly leathery, glabrous abaxially, lateral veins 8–10-paired, conspicuously convex abaxially, concave adaxially, base narrowly cuneate, margin flat, slightly reflexed after drying, apex rounded. Inflorescences terminal, paniculate, ca. 10 cm, brown pubescent; peduncle 8–15 mm; pedicels 5–10 mm. Sepals slightly connate at base, ovate, ca. 3 mm, glabrous or margin rarely ciliate. Petals oblong, 1–1.2 cm. Stamens ca. 7 mm; filament compressed linear. Ovary brown pubescent; stipe short. Style short, ca. 2 mm, glabrous; stigmas capitate. Capsule oblate, 2–2.5 cm in diam., dehiscing by 2 valves; pericarp thickly woody, ca. 3 mm thick, horizontally striate adaxially; placentas 2, parietal. Seeds ca. 7 mm. Fl. Feb–Apr, fr. Mar–Nov.