Shrubs 1–2(–3) m tall. Twigs terete, densely spreading rust-colored setose. Leaves scattered; petiole 3–5 mm, densely spreading rust-colored setose; leaf blade elliptic-ovate, ovate, or oblong-lanceolate, 8–16 × 4–9 cm, papery-leathery, abaxially very densely rust-colored setulose, especially on veins, adaxially bullate, densely shortly setulose, immediately glabrescent, secondary veins 2 pairs arising from base, fine veins distinctly raised abaxially, impressed adaxially, base shallowly cordate to rounded, margin slightly revolute, sparsely dentate, ± setiform-ciliate, apex acuminate, caudate, or acute. Inflorescences axillary, racemose or corymbose, 1–4 cm, ca. 10-flowered, densely tomentulose; bracts rhombic-triangular, 5–8 × 4–5 mm, leathery, densely tomentulose. Pedicel 0.8–1.3 cm, glabrous; bracteoles 2, basal, similar to bracts but smaller. Calyx lobes triangular-ovate, 3–4 mm, densely tomentulose near apex, otherwise glabrous, margin membranous. Corolla white, broadly campanulate, 1–1.3 cm, abaxially glabrous; lobes broadly triangular, 0.8–1 cm wide. Filaments strongly dilated at base, 2–3(–4) mm, glabrous, papillate; anthers ca. 4 mm, thecae shortly 2-awned. Ovary glabrous. Capsule 7–9 mm in diam., glabrous. Fl. Feb–Mar, fr. Mar–Jul.
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