Bistorta macrophylla

Bistorta macrophylla is an unresolved name for a proposed flowering plant species in the buckwheat family Polygonaceae. It is native to mountain regions of West China (Gansu, Guizhou, Henan, Hubei, Qinghai, Shaanxi, Sichuan, Xizang, Tibet, Yunnan), Pakistan, Bhutan, North (Himachal Pradesh, Uttarakhand) and West India (Western Ghats) and Nepal.