Shrubs, deciduous, 0.4–1.5(–2) m tall; branchlets branchlets sparsely scaly, long-setose; bud scales deciduous. Petiole 1–4(–5) mm, scaly, long-setose; leaf blade obovate, or obovate-elliptic to oblong-lanceolate, (1.5–)2–4(–6) × (0.6–)1–2(–2.6) cm; base cuneate; margin setose; apex rounded, mucronate; abaxial surface scales 1–7 × their own diameter apart, pale or dark brown, midrib setose; adaxial surface green, usually sparsely scaly, setose. Inflorescence 1–3(–5)-flowered. Pedicel 0.6–1.2(–3.5) cm, scaly, long-setose; calyx lobes ovate to oblong, persistent in fruit, scaly, ciliate; corolla funnel-campanulate, yellow or greenish yellow, with or without green spots, 1.4–2.4 cm; tube 7–11 mm, scaly, sometimes setose; stamens 10, filaments pubescent towards base; ovary scaly, occasionally setose; style thick, sharply bent, rarely straight. Capsule cylindric-ovate, 5–8(–10) mm, scaly. Fl. May–Jul, fr. Jul–Aug.
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