Exostema
A genus of tropical American shrubs or trees of the family Rubiaceae. The bark of one species Exostema caribaceum resembles the bark of the Cinchona trees and has been used as a substitute for quinine.
| Taxonomic Hierarchy | |
| Kingdom | Plantae – Vegetal, plants |
| Subkingdom | Viridaeplantae – green plants |
| Infrakingdom | Streptophyta – land plants |
| Division | Tracheophyta – vascular plants, tracheophytes |
| Subdivision | Spermatophytina – spermatophytes, seed plants |
| Infradivision | Angiospermae – flowering plants, angiosperms |
| Class | Magnoliopsida |
| Superorder | Asteranae |
| Order | Gentianales |
| Family | Rubiaceae – madders, rubiacées |
| Genus | Exostema (Pers.) Humb. & Bonpl. |
| Direct Children: | |
| Species | Exostema caribaeum (Jacq.) Roem. & Schult. – Caribbean princewood, princewood |
| Species | Exostema ellipticum Griseb. – plateado |
| Species | Exostema sanctae-luciae (Kentish) Britton – Jamaicanbark |
| Exostema, (Pers.) Humb. & Bonpl. Taxonomic Serial No.: 34989 | |
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