Isopyrum cavaleriei H. Léveillé & Vaniot, Bull. Soc. Bot. France 51: 289. 1904; Asteropyrum hederifolium Schipczinski.

Leaves 2--7; petiole 6--13 cm, glabrous, seldom retrorsely puberulous; leaf blade 5-sided in outline, 4--11 × 4--14 cm, margin repand, lobed; lobes 3--5, triangular, apex acute. Scapes 12--20 cm tall, glabrous or sparsely pubescent. Flowers 1.3--1.6 cm in diam. Pedicel 5--8 mm. Sepals elliptic to obovate, 7--8 × 3--5 mm, glabrous. Fl. May--Jun, fr. Jun--Jul. 2n = 16*.

* Forests, shady places by streams; 1000--1100 m. N Guangxi, Guizhou, Hubei, Hunan, SW Sichuan, E Yunnan.