Annuals, 30–70(–90+) cm. Cauline leaves ± scattered over proximal 1/4–1/2(–3/4) of plant heights, internodes mostly 4–10 cm; lobes mostly linear to filiform, sometimes ± oblong, 25–50(–120) × 0.5–1+ mm. Calyculi of 6–7+ narrowly triangular bractlets 2–4 mm. Ray florets 8; laminae yellow to golden, usually proximally, sometimes almost wholly, suffused with red-brown or with a red-brown spot or band, 10–20+ mm. Disc corollas red-brown, throats shorter than lobes. Cypselae 5–5.5+ mm; pappi 0.5–1+ mm. 2n = 20.
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