Small trees, 4–6 m tall; shoots ca. 7 mm in diam. below inflorescence; young shoots densely pale brown glandular-hairy, glabrescent. Petiole 40–45 mm, densely glandular-hairy at first, glabrescent; leaf blade leathery, oblong, 22–25 × 7.5–8.8 cm; base broadly cuneate or rounded, unequal; apex obtuse; both surfaces glabrous; abaxial surface pale green; adaxial surface green, midrib raised abaxially, grooved adaxially, lateral veins 17–21-paired, impressed adaxially. Inflorescence 9–12-flowered; rachis ca. 45 mm, densely glandular-hairy. Pedicel 2.5–4.8 cm, with similar hairs; calyx cupular; lobes 5, ca. 4 mm, glandular; corolla tubular-funnelform, color unknown, 9.5–10 cm, outer surface with brownish glandular hairs, glabrous inside; lobes 5, ovate, ca. 2 × 1.6 cm; stamens 16, 3.6–6.1 cm, filaments glabrous; ovary conical, ca. 8 × 7 mm, densely glandular-hairy; style 7–8 cm, lower half with glandular hairs. Capsule cylindric, slightly curved, 35–42 × 11–13 mm, with persistent glandular hairs. Fl. Jul, fr. Oct.
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