Trees to 16 m tall; bark gray. Branchlets dark gray-brown, densely pubescent when young, glabrescent. Petiole ca. 1 cm, densely yellow pubescent; leaf blade oblong-lanceolate, ovate-lanceolate, or elliptic-lanceolate, rarely elliptic, 5-10 × 2.5-4 cm, abaxially sericeous-villous along veins, glabrous elsewhere, bearded in axils of lateral veins, adaxially densely villous along midvein, base rounded, subcordate, or rounded-cuneate, margin irregularly and doubly setiform mucronate serrate, apex acute, acuminate, or caudate-acuminate; lateral veins 14-18 on each side of midvein. Female inflorescence 5-8 × 2-2.5 cm; peduncle 1.5-2 cm, densely yellow hirsute; bracts semiovate, 1.6-2 cm × 6-8 mm, abaxially densely yellow hirsute along reticulate veins, outer margin coarsely dentate, without basal lobe, inner margin entire, with inflexed basal auricle, apex acute or obtuse; veins 5. Nutlet broadly ovoid, 3-4 mm, sparsely pubescent, villous at apex, densely brown or orange resinous glandular, prominently ribbed. Fl. May-Jun, fr. Jul-Aug.
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