Persicaria blumei (Meisner) H. Gross; P. buisanensis (Ohki) Sasaki; P. caespitosa (Blume) Nakai var. longiseta (Bruijn) C. F. Reed; P. gentiliana H. Léveillé; P. longiseta (Bruijn) Moldenke; P. manshuricola Kitagawa; P. roseoviridis Kitagawa; Polygonum blumei Meisner; P. buisanense Ohki; P. caespitosum Blume var. longisetum (Bruijn) Steward; P. gentilianum (H. Léveillé) H. Léveillé; P. interruptum Bunge; P. kinashii H. Léveillé & Vaniot; P. posumbu Buchanan-Hamilton ex D. Don var. blumei (Meisner) Herder; P. roseoviride (Kitagawa) S. X. Li & Y. L. Chang; P. roseoviride var. manshuricola (Kitagawa) C. F. Fang.

Leaves basally cuneate. 2n = 40.

Moist valleys, along stream banks; sea level to 3000 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, ?Nei Mongol, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [India, Indonesia, Japan, Kashmir, Korea, Malaysia, Myanmar, Nepal, Philippines, Russia (Far East)].