Athroisma DC.

Herbs, annual, viscid pubescent, with long tap root; stems striate. Leaves alternate, pinnatifid; segments oblong, irregularly toothed; petiolate. Heads heterogamous, disciform small, congested into terminal and leaf opposed peduncled clusters. Involucral bracts 1 - 2. Receptacle cylindrical, paleaceous, pales with 1-flower in axil. Ray florets female, fertile, filiform, few, 2 - 3 toothed. Disc florets bisexual, fertile, tubular; limb campanulate, 3 - 4 toothed. Anthers with caudate-sagittate arms. Style arms of bisexual florets obtuse. Achenes black, dorsally compressed and fimbriate-ciliate along the margins; ventral side flat. Pappus of short scales, fimbriate at apex.

Tropical Africa, Asia, Indonesia and Malaya; ca 8 species, 1 in India.

List of Lower Taxa