Origin:
The temperate Himalayas from Nepal to Bhutan and Khasi Hills.

Action:
Febrifuge, antipyretic, antiparasitic (used for malarial fever).
Dried roots, known as Chang Shan, dried leafy tops, known as Shu Chi, in Chinese medicine, are used for malarial fever. Dried roots (Chang Shan) contain the alkaloid dichroine A and B, dichrin A and B.

Khare, C.P./ Indian Medicinal Plants. -- Nueva Dheli: Springer, 2007 . - p. 836.