Description from Flora of China
Herbs, annual. Stems erect, 12-45 cm tall, branched from base or middle, sparsely arachnoid to glabrous. Leaves sessile; blade oblanceolate-spatulate or oblong, 3-11 × 0.5-2 cm, ± arachnoid especially abaxially, to glabrous, shallowly to deeply pinnatifid with 6-8 oblong or oblong-lanceolate, usually irregularly dentate lateral lobes, lower ones attenuate into a petioloid base, middle ones subamplexicaul, apex obtuse; upper leaves smaller. Capitula discoid, few to many in dense terminal corymbs; peduncles 0.5-2 cm, sparsely pubescent or glabrous, with a few linear-subulate bracteoles. Involucres campanulate, 6-7 × 2-4 mm, calyculate; bracts of calyculus 7-11, linear-subulate, 2-3 mm, usually with long black tips; phyllaries 18-22, linear, ca. 0.5 mm wide, herbaceous, with narrow membranous margin, glabrous, apically acute and blackish. Ray florets absent. Disk florets many; corolla yellow, 5-6 mm, with 3-4 mm tube and funnelform limb; lobes ovate, ca. 0.3 mm, apically obtuse. Anthers ca. 0.7 mm, basally shortly obtuse-auriculate, appendages ovate; antheropodia slender, dilated toward base. Style branches ca. 0.5 mm. Achenes cylindric, 2-2.5 mm, pubescent on ribs. Pappus white, 6-7 mm. Fl. Apr-Oct. 2n = 40.
Disturbed open places; 300-2300 m. Guizhou, Jilin, Liaoning, Nei Mongol, Sichuan, Taiwan, Xizang, Yunnan [Mongolia; throughout temperate N and S Africa, Asia, and Europe; widely adventive].