Small, usually compact shrubs, 1–1.5 m tall; young shoots densely tomentose. Petiole 10–15 mm, pale brown-tomentose; leaf blade leathery, oblong-elliptic to oblong-lanceolate, 5–9 × 1.5–3 cm; base obtuse or subrounded; apex acute; abaxial surface cinnamon to rust-red, densely woolly; adaxial surface light green, glabrous. Inflorescence umbellate, 10–20-flowered; rachis ca. 10 mm, puberulent. Pedicel ca. 2 cm, densely red-brown-floccose and short-glandular-hairy; calyx lobes 5, 7–10 mm, unequal, oblong, acute, with short-stalked glands outside, margin glandular-ciliate; corolla funnel-campanulate, pale purple, with crimson markings, 3–3.5 cm, sparsely pubescent at base inside; lobes 5; stamens 10, unequal, filaments densely puberulent at base; ovary ca. 5 × 2.2 mm, densely short-glandular-hairy; style sparsely short-glandular-hairy near base; stigma discoid. Capsule cylindric, ca. 15 × 5 mm, enclosed in persistent calyx. Fl. May–Jun, fr. Jul.
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