Ivarancusa. Andropogon ivarancusa.

Botanical name: 

Ivarancusa.—The roots of Andropogon Ivarancusa Boiss., now considered to be in large part A. Schoenanthus L. (Fam. Gramineae), a native of Central India. It contains a volatile oil, resin, and a bitter substance, and is stated to be coming into wide vogue on the continent as a diaphoretic drug. It is also used in perfumery.

The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.