This section is from the book "Botanic Drugs Their Materia Medica, Pharmacology and Therapeutics", by Thomas S. Blair. Also available from Amazon: Botanic Drugs, Their Materia Medica, Pharmacology and Therapeutics.
Columbo, jateorhiza palmata. Official in all nations except Serbia.
Calumba is a valuable tannin-free bitter containing berberine, as well as its own essential bitter, columbin.