Shrubs, 1.5–3 m tall; young shoots densely yellowish gray-tomentose. Leaf blade thickly leathery, ovate-oblong to oblanceolate, 5–11 × 2–4 cm; base cuneate; margin slightly revolute; apex acute, apiculate; abaxial surface indumentum rust-red to dark brown, dense, 1-layered, hairs fasciculate to stellate; adaxial surface coarsely bullate-rugose, glabrescent; midrib, lateral and net veins deeply impressed adaxially. Inflorescence racemose-umbellate, 8–10-flowered; rachis 5–8 mm, yellowish pubescent. Pedicel 1.5–2 cm, densely floccose-tomentose with a few glandular hairs; calyx lobes 5, ca. 2 mm, triangular, densely floccose; corolla funnel-campanulate, white to pink, with red spots inside, 3–4 cm, puberulent at base inside, lobes 5; stamens 10, unequal, filaments puberulent in lower half; ovary ca. 5 mm, densely rust-red woolly-tomentose; style ca. 2.3 cm, glabrous, stigma capitate, green. Capsule cylindric, slightly curved, 15–20 × 4–5 mm, tomentose. Fl. May–Jun, fr. Aug–Oct.
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