Shrub to 3.5 m. high. Stem slender, glabrous, finely ribbed. Leaves asym-metric, elliptic-obovate, penninerved, serrulate-denticulate with setiferous teeth, acuminate, unequally obtuse at base with the broader side extended on the petiole beyond the narrower, glabrous to minutely puberulent throughout, foveolate, 9.5-14 cm. long, 4.5-6 cm. wide, petioles glabrous, rugose, 5-15 mm. long, stipules glabrous, ovate to elliptic, obtuse to acuminate and mucronate, truncate to nearly clasping at base, 15-25 mm. long, 4-6 mm. wide. Peduncles to 7 cm. long. In-florescences cymose, terminal and axillary. Bracts inconspicuous, the staminate thin, elliptic, ca. 1 mm. long, the pistillate very early deciduous. Pedicels glabrous, slender, to 2 cm. long. Staminate tepals 2, ovate-obtuse to semi-orbicular, usually cordate at base, 5-6 mm. long, 3-8 mm. wide. Stamens numerous, free, with con-nectives produced and exceeding the shorter outer filaments. Pistillate tepals 2 (rarely a smaller third one present), obovate and obtuse to elliptic, 5-8.5 mm. long, 3-5.5 mm. wide. Ovary glabrous, sometimes with reddish dots on surface. Styles 3, bifid or irregular, essentially free. Capsule tri-alate, the largest wing with truncate obtuse apex, to 15 mm. wide, one wing marginiform, the third only slightly broader. Seeds obovoid or ellipsoid, less than 0.5 mm. long.
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