Shrubs or trees to 6 m tall. Branchlets dull red or yellowish brown, glabrous, downy when young. Buds russet, glabrous. Stipules absent or small, semicordate; petiole 5-7 mm; leaf blade broadly ovate-elliptic, broadly elliptic, or obovate-elliptic, rarely ovate-lanceolate, 3-5 × 1.5-3 cm, glabrous or only veins pilose, abaxially greenish or whitish, adaxially dull green, base rounded or cuneate-rounded, margin entire or irregularly serrate distally, apex acute; lateral veins 7-10 on each side of midvein. Flowering slightly precocious or coetaneous. Male catkin broadly ellipsoid, ca. 2 × 1.5 cm; bracts purplish black distally, oblong-elliptic or obovate-oblong, ca. 2 mm, abaxially villous, apex rounded-obtuse. Male flower: gland 1; stamens 2; filaments united nearly throughout, ca. 6.5 mm, downy proximally; anthers red or golden yellow. Female catkin cylindric, ca. 3.5 × 1.5 cm; peduncle very short; bracts purplish black distally, oblong-elliptic or obovate-oblong, apex acuminate to rounded-obtuse. Female flower: gland small; ovary long conical, ca. 5 mm, downy, long stipitate; style short; stigma 2-cleft. Capsule with valves revolute. Fl. May, fr. Jun.