Curcuma zedoaria
Curcuma zedoaria (Christm.) Roscoe.
Engl.: zedoary, white turmeric, zedoary turmeric.
Deu.: Zitwer, Zedoarwurzel, Zittwer Kurkume, Zitwerwurzel.
Sven.: zittverrot, zedoarrot.
Fran.: zedoire.
Bot. syn.: Amomum zedoaria Christm., Amomum zerumbet Koen. ex Retz., Curcuma zedoaria (Christm.) Roscoe.
Tinctura Cinchonae Composita (U. S. P.)—Compound Tincture of Cinchona.
Classic texts: King's 1898.
Swedish bitters.
Henriette's herbal blog: There's lots of different recipes for it.