This section is from the book "A Text Book Of Materia Medica, Being An Account Of The More Important Crude Drugs Of Vegetable And Animal Origin", by Henry G. Greenish. Also available from Amazon: A Text Book of Materia Medica : Being an Account of the More Important Crude Drugs of Vegetable and Animal Origin.
Tinospora (Gulancha). The dried stem of Tinospora cordifolia, Miers. (N.O. Menispermaceoe), a climbing shrub indigenous to tropical India. Straight or twisted, light, cylindrical pieces, or in slices, about 2 cm. or less in diameter; cork thin, brown, papery, with raised scars of numerous lenticels; cortex greenish; section shows a yellowish wood with radially arranged, wedge-shaped wood bundles, containing large vessels, separated by narrower medullary rays; taste bitter. Contains berberine and also a glucosidal bitter principle.