Stems annual, solitary, often flexuous, simple below and branching above, striate, ± densely pilose below and sparsely so or glabrescent above.
An erect perennial herb up to c. 100 cm. tall from a semi-woody taproot; root-crown lanate.
Leaves cauline (4)7–15.5(19.5) x (0.5)1–3.5(5) cm., narrowly oblanceolate to narrowly obovate, upper leaves becoming linear, apices acute to ± attenuate, bases attenuate, margins remotely dentate to denticulate, both surfaces pilose to somewhat strigose and scabridulous, rarely glabrescent.
Achenes 2–3.5 mm. long, obconic-turbinate, truncate above, 4–5-angled, finely 12–15-ribbed, scabridulous or glabrous; pappus of numerous persistent barbellate setae 5–7 mm. long, equalling or slightly exceeding the involucre in length, sometimes with an outer series of minute setae.
Florets numerous; corolla tube 5–7 mm. long, cylindrical, crisped-pubescent on the outside; ligule 7–10 mm. long, erect, strap-shaped, strigose to pilose on the outside, drying greenish, apical lobes up to 2 mm. long papillose.
Involucres up to c. 14 x 10 mm., obconic; phyllaries 2-seriate subequal 8–10 mm. long, narrowly lanceolate, attenuate to the apex, araneose-lanate and papillose-glandular outside; outer phyllaries often with a thickened verruculose midrib, changing ± abruptly into the bracteoles.