Annual or perennial herbs or subshrubs, white-tomentose, sometimes also with glandular hairs. Leaves in a basal rosette and/or cauline and alternate, entire to pinnatisect. Capitula radiate, axillary or terminal, solitary, pedunculate; involucral bracts in several series, imbricate, unequal, herbaceous with scarious margins; receptacle flat or slightly convex, naked, pitted. Ray florets female, 1-seriate, ligulate; disc florets bisexual, tubular; corolla campanulate, deeply 5-lobed; anthers obtuse to sagittate at base, with an ovate apical appendage; style with very short obtuse branches, smooth or papillose. Cypselas obovoid-obconical, winged or ribbed mainly on dorsal surface, pilose or glabrous; pappus 1- or 2-seriate, of large or small scarious scales, or absent.