A large deciduous tree; young branches pubescent to tomentose. Leaves 7-15 x 4-6 cm, elliptic-acuminate to obovate-cuspidate, base obliquelly cuneate to rounded, sharply biserrate, teeth arching with 2-4 secondary teeth, upper surface pubescent to scabridulous in old leaves, lower surface densely pubescent to scabridulous in old leaves, lower surface densely pubescent to tomentose; petiole 6-10 mm long, pubescent. Flowers in clusters on branches of previous season appearing before leaves. Inflorescence axis elongated; pedicels in fruit more than 5 mm long, articulated; lower portion ± 1/3rd the length of pedicel, uniformly pilose. Perianth tube narrowed into the pedicel, lobes 5.6, obtuse, pubescent to subglabrous. Stamens 5-6, filaments longer than the perianth, anthers red. Ovary slightly pubescent all over. Samara orbicular-obovate, 12-15 mm, narrowed into a short stipe, 2-3 mm long; stipe longer than the perianth, seed central, hirsute to subglabrous; wing membranous, reticulate, margin ± ciliolate.