Dioscorea hypoglauca Palibin, Bull. Herb. Boissier, sér. 2, 6: 21. 1906; D. izuensis Akahori; D. kaoi Tang S. Liu & T. C. Huang; D. morsei Prain & Burkill; D. undulata R. Knuth.

Leaf blade triangular or ovate, margin usually transparent. Anther connective short, ca. 1/2 as wide as anther at anthesis. Capsule broadly ellipsoid, apex rounded. Fl. May--Aug, fr. Jun--Oct.

* Mixed forests, mountain slopes; 200--1300 m. S Anhui, Fujian, N Guangdong, NE Guangxi, S Henan, Hubei, Hunan, Jiangxi, N Taiwan, Zhejiang.