Description from Flora of China
Shrubs to 4 m tall. One-year-old branchlets ± pilose; juvenile branchlets slender, gray tomentose. Buds downy. Petiole thin, 2-5 mm, pilose, small glandular; leaf blade narrowly lanceolate to narrowly oblong, ca. 4.5 × 1 cm, abaxially densely appressed pubescent, rarely less densely so, adaxially tomentose at first, glabrescent, base cuneate, margin entire or indistinctly glandular denticulate, apex obtuse or acute; lateral veins thin. Male catkin 1-1.5 cm × ca. 3 mm; peduncle very short, with 1 or 2 leaflets or not; rachis tomentose; bracts obovate-elliptic, ca. 1 mm, base pilose, apex rounded or subtruncate. Male flower: adaxial gland shortly terete, abaxial gland small or absent; stamens 2, distinct; filaments villous at base. Fruiting catkin ca. 2.5 cm × 7 mm; bracts suborbicular, base pilose. Female flower: adaxial gland broadly ovate; ovary ovoid-ellipsoid, glabrous, distally attenuate, sessile; style short, thick; stigma shortly forked. Capsule 2.5-3 mm; stipe very short. Fl. May-Jun, fr. Jun-Jul.
* Mountains; 3200-4100 m. Sichuan