Herbs, annual or perennial. Leaves alternate. Heads heterogamous, rayed, solitary,
axillary or few in leafy panicles. Ray florets female, fertile; 1-many-seriate; fertile; ligule
bluish or rosy, minute. Disc florets bisexual, fertile, tubular, limb 5-cleft. Involucral
bracts half as long as the flowers, 2 - 3-seriate, narrow; outer often leafy. Receptacle flat,
liked or pitted. Anther base obtuse, entire. Style arms of bisexual flowers narrow,
flattened, tips narrowly lanceolate. Achenes narrowly obovate, quite flat. Pappus hairs
sub-2-seriate; outer shorter.
Asia and N. America; ca 6 species, 3 in India.