Perennial herb, up to ± 0.75 m high; stem solitary, erect, simple below inflorescence, harshly glandular-pilose to nearly glabrous, leafy mainly in lower part. Leaves: blade lyrate-pinnatisect, up to 200 x 90 mm, lobes up to ± 5 each side, apical lobe triangular in outline, sinuately lobed, lateral lobes ± oblong, upper margins of larger lobes also shallowly lobed, all margins coarsely, irregularly and sharply dentate; blade of lowest leaves tapering into broad, flat, remotely dentate, half-clasping petiole-like base; upper leaves broad-based, auriculate, dentate, half-clasping; all harshly glandular-pubescent on both surfaces. Heads radiate, many in congested clusters in compact, rounded, corymbose panicle. Involucral bracts ± 20, 9-12 mm long, equalling disc florets, glandular-hispid; calyculus bracts few, long, glandular mainly on margins. Flowers: ray florets 8; ray and disc florets bright yellow; Nov.-Jan. Fruit with cypsela (and ovary) cylindric, ribbed, glabrous.
Perennial herb, rhizomatous. Stems erect, single, unbranched, up to 0.75 m high, hollow, ± glabrous to glandular-pilose, leafy below. Leaves lyrate-pinnatisect, up to 200 x 90 mm, up to 5 lobes each side, apical lobe triangular, sinuately lobed, base ± clasping, petiole-like, margins coarsely, irregularly, sharply toothed; both sides harshly glandular-pubescent. Inflorescence a compact, rounded, corymbose panicle. Capitula many in dense clusters; radiate, disc and rays bright yellow, rays 8, long, spreading; involucre campanulate; bracts ± 20, 9-12 mm long, glandular-hispid; calyculus bracts few, long. Flowering time Nov.-Jan. Cypselae cylindrical, 6 mm long, ribbed, glabrous.