Shrub 2-6 m tall; stems 2.5 cm diam. toward the base, glabrate to strigillose with hairs 0.3 mm long. Leaves broadly ovate; blades 18-32 cm long, 12-28 cm wide, acute to acuminate, the base obtuse to shortly attenuate (cordate on very large leaves), the margin serrate, the upper surface glabrate to strigillose (especially on veins) with hairs to 0.3 mm long, the lower surface moderately strigose with hairs to 0.3 mm long; petioles 5-18 cm long, to 5 mm diam., glabrate. Inflorescence a tightly clustered racemose panicle of 125-600 heads; peduncles 0.5 mm long. Heads radiate; involucre cupulate, 3-4 mm across, the bracts 8-13, ovate to obovate, 3-4 mm long, 2-2.5 mm wide, abaxially glabrate to infrequently strigillose with hairs 0.1 mm long, the upper half ciliate with hairs 0.1 mm long; paleas absent; ray florets 6-9, the corollas 2 mm long, 0.3 mm diam., the 3 lobes 0.1 mm long, the styles 2.5 mm long with branches 1.2 mm long; disc florets 7-12, the corollas 3.5-4 mm long, the throat 2.5-3 mm long and 1 mm diam., the lobes 0.6 mm long, puberulent at apex, the tube 0.3 mm diam., the anthers 2 mm long, the style 3-4 mm long, the ovary sterile, 1.5 mm long, 0.3 mm diam., villous with hairs to 1 mm long. Achenes 2.3 mm long, 1.8 mm diam., pubescent on the upper 1/3 with hairs 0.1 mm long; pappus absent, Chromosome number unknown.
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