Trees to 6 m tall; bark brownish; crown dense. Juvenile branchlets brownish, slender. Buds oblong, small, coadnate. Stipules caducous; petiole 3-10 mm, glandular; leaf blade lanceolate or narrowly lanceolate, 3-7.5 cm × 5-12 mm, both surfaces green, glabrous, base cuneate, margin entire or slightly shallowly dentate, apex acuminate; lateral veins 12-16 on each side of midvein, diverging from midvein at 40-45° . Male catkin slender, 5-7 cm; peduncle with 2 or 3 leaflets; rachis subglabrous; bracts yellowish, broadly obovate, with sparse hairs. Male flower: stamens 3(or 4), basally pilose; glands adaxial and abaxial. Female catkin with narrowly obovate bracts. Female flower: glands adaxial and abaxial, shorter than stipe; ovary ovoid-conical, ca. 4 mm, glabrous, shortly stipitate; style very short; stigma subentire or 4-lobed. Capsule 5-5.5 mm. Fl. May, fr. Jun.
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