水毛茛(原变种) shui mao gen (yuan bian zhong)

Ranunculus bungei Steudel, Nomencl. Bot., ed. 2, 2: 432. 1841, based on R. hydrophilus Bunge, Enum. Pl. China Bor. 2. 1833, not Gaudichaud-Beaupré ex Mirbel (1825); R. hydrocharis f. bungei (Steudel) Hiern; R. trichophyllus var. chanetii H. Léveillé.

Flower 1--1.8 cm in diam. Sepals 5, 4--5.5 mm. Petals 5, white with yellow base, 5--9 × 4.5--7 mm. Stamens (12--)15--20. Fl. May--Sep.

* Ponds, lakes, streams; near sea level to 4800 m. Gansu, N Guangxi, Hebei, SW Hubei, S Jiangsu, Liaoning, E Qinghai, Shanxi, W Sichuan, Xizang, NW Yunnan, Zhejiang.