Description from Flora of China
Shrubs, subshrubs, or perennial herbs, rarely scandent shrubs. Leaves alternate, or tufted on brachyblasts; leaf blade linear, subulate, lanceolate, oblong, or ovate, entire, dentate, or denticulate. Capitula subsessile or pedunculate, in glomerulate, corymbose, or paniculate synflorescences, or solitary, discoid, homogamous; involucre campanulate or cylindric; phyllaries many, 3-seriate to multiseriate, imbricate, unequal, herbaceous or leathery; receptacle flat, alveolate or not, glabrous or villous around, epaleate. Florets few, bisexual, rarely unisexual, tubular, corollas deeply 5-lobed, regularly or slightly irregularly, rarely obviously irregularly, lobed, lobes linear, revolute; anther bases long tailed, apex appendaged; styles shallowly divided at apex, style branches very short, abaxially with short hairs or papillae, apices obtuse. Achenes terete, obovoid, or obconic, 10-ribbed; pappus setae barbellate, numerous. 2n = 24, 26, 28.
About 25 species: Afghanistan, China, Japan, Thailand; 17 species (16 endemic) in China.
(Authors: Gao Tiangang (高天刚); D. J. Nicholas Hind)