Shrubs or small trees, 3–6 m tall; branches slender, gray-brown, glabrous, setose or glandular-setose. Petioles 10–12 mm, glabrous or sparsely (sometimes glandular) setose; leaf blade elliptic-ovate or oblong-lanceolate, 5.5–11 × 1.5–3.5 cm; base cuneate or narrowly cuneate; apex shortly acuminate; abaxial surface glabrous though sometimes setose on midrib. Inflorescence terminal, umbellate, 5–6-flowered; peduncle ca. 5 mm, glabrous. Pedicel 2–2.5 cm, densely glandular setose; calyx lobes unequal, triangular, rarely linear, 3(–12) mm, pubescent near base on outer surface, margin glandular hairs, apex with toothed lobes; corolla funnel-campanulate, purplish or pink, 4.5–5 cm, tube tapering towards the base, 10–13 mm; lobes spreading, oblong-obovate, 3–3.5 cm, conspicuously veined, apex puberulent; stamens 10, shorter than corolla, filaments flat, densely pubescent below; ovary cylindric, ca. 5 mm, glabrous or densely glandular-setose; style as long as corolla or slightly exserted, glabrous. Capsule cylindric, with midrib, slightly curved, 30–50 mm. Fl. Mar–Apr, fr. Sep–Dec.