Annuals, 10–90 cm (taprooted). Stems hispid. Leaves mostly alternate; blades lance-linear to linear, 20–100 × 1–3 mm, margins conspicuously ciliate at least 3/4 their lengths, hairs often than 0.5+ mm, faces hispid, abaxial sometimes gland-dotted. Heads (1–)3–15+. Peduncles 0.5–9 cm, lengths 1/10–1/3 leafy portions of stems. Involucres 9–14 mm diam. Paleae ovate to rectangular, 4.5–5.5 mm, prominently cuspidate. Phyllaries 5.5–10 mm. Ray florets 9–15; laminae oval to obovate, 6–13 mm. Disc florets 50+; corollas 2–3 mm. Cypselae black, 1.5–2.5 mm. 2n = 16.
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