Shrubs to 3 m tall. Branchlets glabrous, dark brown initially, later brownish gray. Winter buds ovoid, brown; scales orbicular, imbricate, margin pilose. Stipules small, lanceolate, caducous, margin glandular denticulate. Petiole 1–1.5 cm, usually glabrous, with 1–3 nectaries; leaf blade lanceolate, 5–12 × 1.5–4 cm, broadest near middle, abaxially brownish villous, adaxially glabrous or rarely pilose on veins, base narrowly subrounded, margin irregularly minutely gland-tipped serrate, apex acute. Flowers solitary, opening slightly before or with leaves, ca. 3 cm in diam. Pedicel 7–10 mm, glabrous. Hypanthium subcampanulate to obconic, outside glabrous. Sepals ligulate, shorter than hypanthium, reflexed, outside glabrous, margin ciliate glandular. Petals white, long obovate, 1.2–1.5 × 0.8–0.9 cm, base shortly and broadly unguiculate, margin entire, apex obtuse. Stamens ca. 30, arranged in several whorls, outer ones nearly as long as petals, inner ones shorter than petals; filaments slender, glabrous; anthers small, orbicular. Ovary densely villous. Style slender, slightly longer to nearly as long as stamens, basally hirsute; stigma dilated. Drupe unknown. Fl. Mar–Apr.
Calcareous mountain areas; ca. 1400 m. Chongqing (Chengkou Xian).