Erect perennial herb, with several to many erect stems from a woody rootstock or burned old stems, 30–90 cm tall; may flower when almost leafless; stems erect or (fide Haarer) twining clockwise around old growth; stems sparsely branched, ribbed, scabrid and glandular.. Leaves not aromatic, sessile, linear to narrowly ovate, 0.5–4(–7) cm long, 0.1–1.4 cm wide (but usually very narrow), rounded to subcordate at the base, with entire often revolute margins, acute to mucronate at the apex, scabridulous and sparsely glandular to almost glabrous.. Capitula 3–5 mm long, 2–8 together in subglobose cymes, the cymes solitary or in lax leafy corymbs; stalks of individual capitula 0.5–6 mm long; phyllaries lanceolate, 1.5–4 mm long and 0.6–0.9 mm wide, with scarious laciniate margins, the apex laciniate to acuminate, pilose and glandular; receptacle toroid, spinulose.. Marginal florets yellow, 30–40, tube 1.4–1.7 mm long, lobes 4–5, 0.2–0.3 mm long, style 2–2.1 mm long, with short obtuse arms; disc florets yellow, 22–40, tube 2.1–2.5 mm long, glandular, lobes 0.5–0.7 mm long, glandular; anthers 1–1.3 mm long with triangular appendages; style 2.3–2.8 mm long, with short rather wide pilose arms 0.4 mm long.. Achenes ellipsoid, 0.8–1.2 mm long, pubescent; pappus of 15–25 white barbellate to subplumose setae 2–2.2 mm long, as long as the marginal florets.. Fig. 103.
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