Erect perennial herbs or subshrubs to 3 m tall, with few branches; stems brownish, terete, slightly striate, densely puberulous to tomentulose. Leaves mostly opposite; blades narrowly ovate to lanceolate, to 15 cm long and 6 cm wide, the base rounded to cuneate and abruptly narrowed, the margins slightly serrulate to crenate-serrate, the apex narrowly acuminate, the upper surface smooth to slightly bullate, sparsely to densely puberulous, the lower surface densely puberulous to tomentellous with numerous glandular punctations, the venation prominently trinervate from near the base; petioles short, to 15 mm long, becoming winged distally. Inflorescence broadly and densely corymbose, the ultimate branches short and tomentellous, to 3 mm long. Heads 6-7 mm high with 8-15 florets; involucral bracts 12-15, subimbricate, in ca. 3 series, suborbicular to broadly oblong, 1.5-6.0 mm long, short-acute to rounded with scarious tips and margins, weakly 2-4 costate, the exposed outer surfaces puberulous; corolla white, 4.0-4.5 mm long, the slender tube ca. 1.5 mm long, some glands on tube and lobes, the lobes short, about as broad as long, sometimes with 1-2 small hairs. Achenes 1.8-2.0 mm long, glabrous or with a few glands; carpopodium short and broad, the cells large and thin-walled in ca. 7 rows; pappus of 30-40 slender bristles, 3.5-4.0 mm long, the apical cells blunt, not broadened. Pollen 18-20 ,u in diameter.
Home