Annual, rarely perennial. Stems ascending to erect, sparingly branched or not branched, glabrous, 4-45-(60) cm tall. Lvs usually all basal, oblanceolate to linear-oblanceolate, simple and shallowly to deeply dentate, or pinnatifid, (0.6)-2.5-10-(15) × (0.1)-0.5-2-(3) cm, glabrous or sometimes with sparse short strigose hairs. Stem bracts few, minute; rarely whorls of rosette lvs formed on stems. Capitula narrowly cylindric. Involucral bracts narrow-oblong with subacute apex, glabrous, green, c. 8 mm long at flowering; inner bracts with broad scarious margin, up to 20 mm long at fruiting. Florets yellow, c. = involucre. Achenes dark brown, scabrid; outer achenes obconic, not beaked, 4-5 mm long; inner achenes fusiform, beaked, up to 8 mm long. Pappus in 2 rows, the outer hairs short, slender, scabrid, the inner up to 15 mm long, stout, plumose.