''Angostura trifoliata'' is a plant native to

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

. It is an

evergreen In botany, an evergreen is a plant which has Leaf, foliage that remains green and functional throughout the year. This contrasts with deciduous plants, which lose their foliage completely during the winter or dry season. Consisting of many diffe ...

, growing tall. The

leaves A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, ...

are composed of three ovoid lanceolate leaflets. The

flower Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, m ...

s are purplish-white. Angostura bark is used in the treatment of fevers, where it is believed to be as effective as

quinine Quinine is a medication used to treat malaria and babesiosis. This includes the treatment of malaria due to ''Plasmodium falciparum'' that is resistant to chloroquine when artesunate is not available. While sometimes used for nocturnal leg ...

. It is also used in a number of aromatic

bitters A bitters (plural also ''bitters'') is traditionally an Alcoholic drink, alcoholic preparation flavored with botanical matter for a Bitterness (taste), bitter or bittersweet Flavoring, flavor. Originally, numerous longstanding brands of bitters ...

, such as Abbott's Bitters and Fever-Tree aromatic tonic water; however, it is not used in Angostura brand bitters, which is instead named after a town in

Venezuela Venezuela, officially the Bolivarian Republic of Venezuela, is a country on the northern coast of South America, consisting of a continental landmass and many Federal Dependencies of Venezuela, islands and islets in the Caribbean Sea. It com ...

, now

Ciudad Bolívar Ciudad Bolívar (; Spanish for "Bolivar City"), formerly known as Angostura and St. Thomas de Guyana, is the capital of Venezuela's southeastern Bolívar, Venezuela, Bolívar State. It lies at the spot where the Orinoco River narrows to about ...

. This plant is used to flavor foods like candy and ice cream. The bark is bruised and used to intoxicate fish.

References

trifoliata {{Rutaceae-stub