Small shrubs; young shoots densely glandular-setose. Summer and winter leaves different. Petiole 7–17 mm, densely brown-setose; leaf blade thin, papery, oblong or oblong-lanceolate, 10–18(–20) × 3–6(–8) cm; base subrounded; margin entire, sparsely short-setose; apex acuminate; abaxial surface shortly setose; adaxial surface glabrescent, lateral veins 15–17-paired, not reaching margin. Inflorescence 10–15-flowered. Pedicel to 1.2 cm, densely shortly brown-setose; calyx lobes triangular-ovate, outer surface and margin setose; corolla funnel-campanulate, red, 1.2–1.4 × ca. 1 cm; tube cylindric, 6–7 × 3.5–4 mm, both surfaces glabrous; lobes spreading, elliptic or obovate, ca. 0.7 × 0.3–0.4 cm; apex obtuse; stamens 5, equal, ca. 2.2 cm, exserted, filaments flat, glabrous; ovary ovoid, ca. 2.5 mm, densely shortly setose; style ca. 2.4 cm, longer than the stamens, spreading shortly glandular-hairy. Capsule long-cylindric or oblong-ovoid, 5–7 mm, densely short-setose. Fl. May, fr. Sep.
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