Description from Flora of China
Herbs, perennial or biennial, 50-120 cm tall, rhizomatous or rarely stoloniferous. Stems with 2 bilateral, hispidulous lines, rarely uniformly hispidulous or glabrescent. Basal leaves rosulate, long petiolate; blade ovate, broadly ovate, or oblong-lanceolate to ovate-lanceolate, 4-25 × 2-18 cm, base decurrent, margin serrate or pinnatifid, with 1 or 2(-4) pairs of segments, apex acuminate. Cauline leaves petiolate; petiole 1-3 cm, upper leaves subsessile; blade similar to basal leaves or rhombic-ovate, hispidulous or glabrescent, base decurrent, margin coarsely serrate, apex caudate-acuminate or acuminate. Inflorescence paniculiform or corymbiform, lateral branches in 5 or 6 pairs, densely hirsute; involucral bracts ovate-lanceolate to linear. Calyx small, hispidulous, sometimes sparsely glandular hairy; limb sinuous; lobes 0.3-0.5 mm. Corolla white, campanulate; tube 1.5-2.6 × 1.7-2.3 mm, deeply 5-lobed; lobes dissimilar in shape, ovate, ovate-oblong, or ovate-elliptic, 0.7-2 × 1.1-1.8 mm. Stamens 4, exserted. Style shorter than stamens. Achenes obovoid; bracteoles obovate, ovate, obovate-oblong, or elliptic, sometimes orbicular, 2.8-6.5 × 2.5-8 mm, hispidulous between 2 main veins, 2(or 3)-veined, base cuneate or rounded, apex rounded, entire or slightly 3-lobed. Fl. Aug-Oct, fr. Sep-Nov. 2n = 44.
Forests, forest margins, thickets, grassy areas, roadsides; below 100-2000 m. Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, SE Liaoning, Taiwan, Zhejiang [Japan].