Angostura is an evergreen tree that can reach 15 meters (49 feet) in height. It features shiny green leaves, fragrant flowers, and gray bark.
In South America, angostura is a traditional tonic and fever cure mainly used for intestinal ailments. Native Amazonians also utilize the herb as a fish poison. Although the source of "bitters" has been identified as Angostura, the exact composition of the drink remains a trade secret. Whether this component is part of the famous cocktail flavoring is uncertain.
Angostura originates from tropical South America and a few Caribbean islands, where the bark is collected year-round.
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