Description from
Flora of China
Osbeckia angustifolia D. Don, Prodr. Fl. Nepal. 221. 1825.
Shrublets 80-100 cm tall. Leaves subsessile; leaf blade oblong-ovate to elliptic-ovate, (2-)3-5(-9) × (0.3-)0.6-1(-3.2) cm, base rounded to subcordate, apex acute. Petals 1.1-1.3 cm. Hypanthium with 5 to numerous setiform tubercles. Fl. Jun, fr. Aug-Nov.
Grassy areas on open slopes, trailsides; 500-2800 m. Hainan, SW Sichuan, NW and SW Yunnan [Cambodia, India, Laos, Myanmar, Nepal, Thailand, Vietnam].
