Cyathula officinalis

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

Cyathula officinalis
Cyathulae Radix (A). Flower of Cyathulae Radix (B, C). Roots of Cyathulae Radix (D, E). Transverse section of Cyathulae Radix (F)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Amaranthaceae
Genus:	Cyathula
Species:	C. officinalis
Binomial name
Cyathula officinalis K.C.Kuan