Fig. 322. Brown Ipecacuanha Root.
a, Ringed portion. b, Portion of a root without rings.
This image is from _ in Pereira's Elements of Materia Medica and Therapeutics, 1854.
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Henriette's herbal is one of the oldest and largest herbal medicine sites on the net. It's been online since 1995, and is run by Henriette Kress, a herbalist in Helsinki, Finland.