Streptolirion cordifolium (Griffith) Kuntze; S. duclouxii H. Léveillé & Vaniot; S. lineare Fukuoka & N. Kurosaki; S. mairei H. Léveillé; S. volubile subsp. subalpinum C. Y. Wu; Tradescantia cordifolia Griffith.

Stems usually very long and climbing, to 6 m, sometimes erect or suberect, not climbing, 12--50 cm. Stems and leaves mostly glabrous, rarely stems villous with brown, multicellular hairs or petioles yellowish hirsute.

Mountain slopes; near sea level to 2000 m (to 3200 m in Xizang and NW Yunnan). Gansu, NW Guangxi, Guizhou, Hebei, W Henan, W Hubei, W Hunan, Liaoning (Qian Shan), S Shaanxi, Shanxi, Sichuan, SE Xizang, Yunnan, W Zhejiang (Chun’an Xian, Tianmu Shan) [Bhutan, India, Japan, Korea, Laos, Myanmar, Sikkim, Thailand, Vietnam].