Cyathula officinalis

Cyathula officinalis (English common names: Cyathula root, Radix Cyathula, ox knee, Chinese:  chuan niu xi ), is a species of Cyathula native to the China (Guizhou, Hebei, Shanxi, Sichuan, Yunnan, Zhejiang) and Nepal. Its IPNI number is 60176-1.