Description from Flora of China
Herbs, perennial; rootstock short and thick. Leaves alternate, linear-lanceolate. Capitula radiate, small, numerous, in dense corymbiform synflorescences. Involucre cylindric-campanulate; phyllaries 3- or 4-seriate, imbricate, shorter than disk florets, membranous, midvein green, margin scarious, apex obtuse to acute. Receptacle alveolate, margin lacerate. Ray florets female, 1-seriate, usually 7-10, white, lamina elliptic; disk florets several, bisexual, partly sterile, corolla yellow, limb shortly campanulate, lobes 5, lanceolate; anther base obtuse; style branch tips lanceolate or sometimes style undeveloped. Achenes dark brownish black or reddish, ovoid, weakly compressed, densely strigose, margins finely 2-ribbed. Pappus 2-seriate, of numerous dirty white, barbellate bristles, thin, subequal.
One species: China, Japan, Korea, Mongolia, Russia (Far East).
(Authors: Chen Yilin (陈艺林 Chen Yi-ling); Luc Brouillet)