Quassia
| Quassia | |
|---|---|
| Quassia amara | |
| Scientific classification | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Rosids | 
| Order: | Sapindales | 
| Family: | Simaroubaceae | 
| Genus: | Quassia L. | 
| Species | |
| See text | |
| Synonyms | |
| 
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Quassia (/ˈkwɒʃə/ or /ˈkwɒʃiə/) is a plant genus in the family Simaroubaceae. Its size is disputed; some botanists treat it as consisting of only one species, Quassia amara from tropical South America, while others treat it in a wide circumscription as a pantropical genus containing up to 40 species of trees and shrubs.