Annual or short-lived perennial herb to 50(–120) cm high, only slightly branched in its distal part; stems red-brown, hispidulous.. Leaves proximally opposite, distally alternate, green, often with reddish tinge, sessile, linear to lanceolate, 2–6 cm long, 0.2–0.5 cm wide, with revolute margins, acute, hispidulous especially on the margins and midrib.. Capitula terminal in lax leafy corymbs, the individual capitula 5–9 mm long; peduncles 1.5–6 cm long, hispidulous and glandular; phyllaries 4-seriate, green and often with a reddish tinge, with white margins, the outermost smallest, lanceolate, 2–5 mm long, 0.3–1 m wide, the margins scarious, ± laciniate, acute to acuminate, glandular, sparsely to densely scabridulous.. Ray florets ± 25, white fading to pale red, the tube ± 2 mm long, the ray 3–12 mm long, 0.5–2 mm wide; disc florets many, cream, the distal part fading to reddish, tube 3.3–4.5 mm long, lobes 0.2–0.3 mm long.. Achenes brown with paler margin, compressed-obovoid, ± 1.3 mm long, 0.5 mm wide, scabridulous; pappus hairs many, white, 3–4 mm long, subplumose.
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