Morinda Root bā jǐ tiān · 巴戟天

Morinda officinalis How (root)

Nature and flavour. Acrid and sweet, slightly warm; Liver and Kidney systems.

Classed as supplementing Kidney yang, as strengthening the sinews and bones, and as dispelling wind-damp. Traditional use covers the cold presentations of the lower body — cold pain in the lower abdomen and loins, and the aching and weakness described in the classical sources. It is regarded as milder than several of the other yang-tonifying herbs, and as combining a tonic action with a wind-damp action.