Perennial herb, very variable in stature, in leaf-size and indumentum, and in head size, stock becoming very stout and woody, crown up to ±25 mm diam. producing one or several leaf rosettes, flowering stems several, lateral to the rosettes, ±100-400(-800) mm high, simple or sparingly branched towards the top, branches simple, glandular-setose, often cobwebby or loosely white-woolly as well, leafy throughout. Radical leaves ±30-100(-270) x 10-25(-60) mm, narrowly or broadly elliptic-spathulate, apex obtuse to subacute, base broad, clasping, both surfaces glandular-setose, lower or both surfaces sometimes woolly as well, sometimes wool confined to margins and midline; cauline leaves up to 70 x 20 mm, decreasing in size upwards, oblong, oblong-lanceolate to lanceolate upwards, correspondingly obtuse, acute to acuminate, apiculate, base more or less cordate-clasping, very shortly decurrent in the larger leaves, glandular-setose, sometimes cobwebby or loosely woolly as well, wool sometimes confined to margins or margins and main veins. Heads heterogamous, depressed-globose, 17-45 mm across the radiating bracts, solitary or up to ±6 subracemosely or corymbosely arranged at the stem tip on long or short leafy peduncles. Involucral bracts in ±7-9 series, graded, imbricate, much exceeding flowers, radiating, glossy, bright yellow, outer sometimes overlaid palest brown or buff, occasionally snow-white. Receptacle scarcely honeycombed. Flowers 311-1856, 34-284 female, 251-1671 homogamous, yellow. Achenes 0.75-1 mm long, barrel-shaped, glabrous. Pappus bristles many, equalling corolla, tips barbellate, bases with patent cilia not or scarcely cohering.
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Perennial herb, with a woody rootstock; rosette of radical leaves, and flowering stems 0.1–0.6 m high, with distant and small leaves; stems simple or distally branched, glandular-setose, occasionally white-woolly.. Leaves aromatic, grey, the radical ones oblanceolate or spatulate, 3–12 cm long, 1–2.5 cm wide, base broad and semi-amplexicaul, apex acute and mucronate, glandular-setose to woolly; cauline leaves similar, decreasing in size towards the inflorescence.. Capitula 8–20 mm long, heterogamous, terminal and solitary or in few-headed corymbs; stalks of individual capitula 2–6 mm long; phyllaries shiny yellow or white, multiseriate, radiating.. Florets yellow, very many, the outer fewer than the inner.. Achenes ellipsoid, 0.7–1 mm long, glabrous; pappus yellow, 3–4 mm long, with subplumose tips, falling individually.
Tufted, white-woolly perennial to 80 cm from a woody rootstock. Leaves mostly radical, oblanceolate, clasping, roughly hairy and ± grey-woolly. Flower heads disciform, 1-6 at branch tips, large, depressed-globose, yellow, sometimes white, 15-25 mm diam., florets ± 300-1860, ovary glabrous.
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