Leaves
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Leaves simple, alternate, narrowly elliptic, broadly ovate, or lanceolate, lower surface white tomentose or glabrous, margins serrate to dentate, short-petiolate.
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Flowers
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Heads in terminal panicles, disciform; involucre ovoid to globose or hemispherical, the bracts coriaceous to chartaceous, in several imbricate series; receptacle naked, convex, alveolate; ray florets female, rays inconspicuous and emarginate, cream-colored, or vestigial, stamens absent, style branches with short, acute to subobtuse, unreceptive tips; disk florets of 1-2 types, the outer row, in species with 2 types, apparently neutral or female, with smaller and narrowly funnelform corollas, inner ones functionally male, corollas tubular at base, abruptly or gradually expanded to the campanulate or funnelform upper part, corollas of both types dark yellow, 4-5-merous, style not separating; pappus of 3-9(-14) stiff, unequal to subequal, persistent, somewhat flattened, non-barbellate bristles.
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