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Perennial herb; flowering stems up to 1.5 m high from stout, woody rootstock, crowned with old leaf bases; simple, leafy in lower part; crown not woolly but stems and leaves initially with white-cobwebby indumentum; whole plant with strong sweetish smell. Leaves: blade of basal leaves broadly to narrowly elliptic or narrowly obovate, up to 600 x 110 mm, apex obtuse to subacute, tapering to broad, petiole-like clasping base, margins callose-dentate or denticulate; stem leaves similar, distant, sessile, base cordate-clasping, sometimes slightly decurrent, passing into bracts. Heads radiate, rarely discoid, up to ± 30 on long peduncles in corymbose panicles. Involucral bracts ± 16-20, (6.5-)8.0-9.0 mm long, slightly shorter than pappus of disc florets; calyculus bracts many, ± equalling involucre, margins often minutely glandular. Flowers: ray florets 8(-11), sometimes absent, ray and disc florets bright yellow; Dec.-Feb. Fruit with cypsela (and ovary) narrowly barrel-shaped, ribbed, glabrous.
Perennial herb, coarse, sweet-smelling, white-cobwebby first, then glabrous, rootstock stout, woody. Stem simple, up to 1.5 m high, leafy. Leaves: radical leaves broadly elliptic, up to 600 mm long, base broad, petiole-like, clasping, margins callose-dentate to denticulate; old fibrous leaf bases persistent; cauline leaves similar, soon distant, sessile, becoming bracts. Inflorescence a corymbose panicle; peduncles long. Capitula up to ± 30, radiate, disc and rays bright yellow, rays 8-11, short, reflexed; involucre campanulate; bracts 16-20, 6.5-9.0 mm long; calyculus bracts many. Flowering time Dec.-Feb. Cypselae narrowly barrel-shaped, ± 4 mm long, ribbed, glabrous.
Perennial herb, up to 1.5 m high. Stems and leaves initially with white cobwebby indumentum, persisting as wisps in leaf axils. Heads radiate, rarely discoid. Involucral bracts 16-20, (6.5-)8.0(-9.0) mm long. Ovaries and achenes glabrous. Flowers bright yellow.
