Perennial herb, up to 1 m high from stout, woody stock crowned with old fibrous leaf bases; flowering stems solitary or several from crown, simple below inflorescence, glabrous or sometimes lightly cobwebby, glabrescent or thinly pilose, leafy. Leaves: blade of basal leaves linear (very narrowly obovate), up to 350 x 15 mm, 1/2 of this petiolar, apex subacute, base tapering to narrowly winged petiolar part, then expanded, clasping; margins closely and minutely callose-denticulate, glabrous or rarely thinly cottony; stem leaves similar but narrower, passing upwards into inflorescence bracts, sessile, ± eared at base, shortly decurrent. Heads radiate, up to 35 corymbose-paniculately arranged. Involucral bracts ± 12, 5.5-7.0 mm long, much shorter than pappus of disc florets; calyculus bracts ample, inner ± equalling involucre or much shorter. Flowers: ray florets 8; ray and disc florets bright yellow; Dec.-Feb. Fruit with cypsela (and ovary) glabrous.
Perennial herb, stock stout, woody. Flowering stems 1-many, up to 1 m high, simple, glabrous to ± cobwebby, leafy, old fibrous leaf bases below. Leaves: radical leaves linear-lanceolate, up to 350 mm long, lower half petiolar, narrowly winged, then expanded, clasping, mostly glabrous, margins closely, minutely callose-denticulate; cauline leaves ± similar, sessile, becoming bracts. Inflorescence a corymbose panicle; peduncles long, sparsely bracteate. Capitula up to 35, radiate, disc and rays bright yellow, rays 8, ± short, reflexed; involucre campanulate; bracts ± 12, 5.5-7.0 mm long; calyculus bracts many. Flowering time mainly Dec., Jan. Cypselae fusiform, ± 4 mm long, ribbed, glabrous.
Perennial herb, up to 1 m high. Leaves glabrous or rarely thinly cottony, radical and cauline; radical leaves petiolate; cauline leaves sessile, shortly decurrent; leaf margins closely and minutely callose-denticulate. Heads radiate. Involucral bracts shorter than pappus of disc flowers. Ovaries (and achenes) glabrous. Flowers bright yellow.