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Annuals, 20–100 cm, glabrous or sparsely arachnoid-villous proximally. Stems 1, often somewhat lax, simple or branched. Leaves ± equally distributed; sessile and auriculate to winged-petiolate and clasping; blades oblanceolate to pandurate, mostly 5–10 × 3–5 cm (distal smaller, bractlike), margins entire, toothed, or weakly lobed. Involucres campanulate to cylindric, 9–14 mm, relatively thick, lengths 1.5–2(–3) times diams. Phyllaries usually 8 or 13. Florets usually 50–60+, surpassing involucres by 2–4 mm; corollas pinkish, purplish, or reddish (not orange), lobes mostly 1–1.7 mm; style appendages ca. 0.2 mm. 2n = 20.


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© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

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