Shrubs or small trees, 3–5 m tall; young shoots and petioles glabrous. Petiole 15–20 mm; leaf blade leathery, elliptic, 7–9 × 3–5 cm; base rounded or truncate; margin ± revolute; apex acute; abaxial surface sparsely powdery-pubescent; adaxial surface shiny, glabrous. Inflorescence racemose-umbellate, ca. 10-flowered; rachis ca. 12 mm. Pedicel 2–2.5 cm; calyx splitting to near base; lobes 5, ca. 5 mm, elliptic, ciliate-glandular; corolla broadly campanulate, white, ca. 4 cm, lobes 5, ca. 2 × 2.5 cm; stamens 10, unequal, filaments pubescent at base; ovary conical, sparsely glandular; style ca. 2.3 cm, shorter than corolla, glabrous. Fl. Jun.
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