Description from Flora of China
Streptocaulon calophyllum Wight, Contr. Bot. India 65. 1834.
Leaf blade elliptic-lanceolate to oblong-elliptic, apex acuminate. Fl. Apr-May, fr. Aug-Sep.
The stem is used as medicine for lumbago, traumatic injury, and against snake bites.
Thickets, mixed woods along valleys; 0-1000 m. Guangxi, Guizhou, Hubei, Hunan, Sichuan, Xizang, Yunnan [Bhutan, India, Kashmir, Nepal, Sikkim, Vietnam]